JP2002080050A - Container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container which is excellent in sealability, is easy to attach/remove a lid member, and can be molded using an inexpensive mold. SOLUTION: The container includes a container body 2 and a lid member 3 to be fitted into the container body 2, while container side protrusions 16 and lid side protrusions 26 are formed on a container side fitting surface 15 and a lid side fitting surface 25 at constant intervals in a circumferential direction wherein they engage with each other by a relative rotation of the lid member 3 and the container body 2 for operating the lid member 3 toward a side in pressure contact with the container body 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a container which can be suitably used as a disposable container.

[0002]

2. Description of the Related Art As a disposable container for noodles such as udon and soba, and bowls such as katsudon and oyakodon, a bowl-shaped or bowl-shaped container body, and a lid member that fits inside or outside of the container body. A sheet formed by molding a foamed synthetic resin sheet material is widely used. By the way, in the container,
Due to the large amount of soup and sauce included in the noodles and bowls as contents, the soup and sauce may be spilled due to vibration when the contents are packed and carried. Therefore, in order to prevent such spilling of contents, for example, Japanese Patent Application Laid-Open Nos. 9-226797 and
As described in JP-A-250755, various proposals have been made to enhance the sealing property between the container body and the lid member.

[0003]

However, as described in the above-mentioned publication, when the sealing property between the container body and the lid member is enhanced, the fitting strength between them increases, and a relatively large force is applied when the lid is opened. Because of the necessity, there has been a problem that the contents are spilled excessively. In order to solve such a problem, it is conceivable to form a screw thread and a screw groove in a fitting portion between the container body and the lid member, and to improve the sealing property by screwing the lid member to the container body. However, in order to form such a container, it is necessary to use a mold having a complicated configuration, such as dividing the mold into a plurality of molds, in order to sufficiently secure the releasability of the screw portion, and the mold cost is high. Problem.

[0004] It is an object of the present invention to provide a container which is excellent in sealability, allows easy attachment and detachment of a lid member, and can be formed using an inexpensive mold.

[0005]

A container according to the present invention comprises a container body and a lid member which is fitted in the container body, and a fitting surface of the container body and a fitting surface of the lid member. And a container-side protrusion and a cover-side protrusion formed at regular intervals in the circumferential direction, and are engaged with each other by the relative rotation of the cover member and the container body, so that the cover member is connected to the container body. This is provided with a container-side projection and a lid-side projection that are operated to the pressure contact side.

In this container, a container-side projection is formed on the fitting surface of the container body, and a lid-side projection is formed on the fitting surface of the lid member, so that the lid member is fitted to the container body. By rotating the two relatively, the lid-side protrusion engages with the container-side protrusion, and is moved to the pressure contact side with the container body, so that the sealing property of the container is enhanced. When the container body and the lid member are relatively rotated in the opposite directions, the engagement between the container-side projection and the lid-side projection is released, and the lid member can be easily removed from the container body. That is, it is possible to realize a container in which the sealing property is sufficiently secured when the lid is closed, and the lid member can be removed with a small operation force when the lid is opened. In addition, since the lid-side projection is pressed against the fitting surface of the container body and the container-side projection is pressed against the fitting surface of the lid member, the fitting strength between the container body and the lid member is also sufficiently ensured. Becomes possible. Moreover, since the container-side projection and the lid-side projection are formed at regular intervals and are not formed continuously,
It becomes possible to form a container side protrusion and a lid side protrusion,
There is no pressure on the storage space for the contents. Furthermore, it is possible to mold without forming the mold for the container body and the lid member separately, and it is possible to adopt an inexpensive mold as the mold.

Here, the arrangement pitch of the container-side protrusion or the cover-side protrusion in the circumferential direction may be set to be multiple times that of the cover-side protrusion or the container-side protrusion. In this case, only by increasing the number of the container-side protrusions or the cover-side protrusions, the relative rotation operation angle when attaching the cover member to the container body, that is, the container-side protrusion and the cover-side protrusion are related. The rotation operation angle until the joining is reduced, and the operability of attaching the lid member can be improved. However, since the fitting portion of the container main body is at a prominent position when eating the contents, it is preferable to increase the number of lid-side protrusions in order to prevent the appearance of the container main body from being deteriorated.

The container-side projection and the lid-side projection are formed by elongated projections, and the container-side projection and the lid-side projection are formed at a predetermined inclination angle with respect to the axial direction of the fitting surface. And the container-side protrusion and the lid-side protrusion are formed of elongated ridges, and the container-side protrusion and the cover-side protrusion are opposite to each other with respect to the axial direction of the fitting surface. It is preferable to arrange them at a constant inclination angle in the direction, or to form at least one of the container-side protrusion and the lid-side protrusion in an isosceles triangle shape. It is preferable to arrange the two protrusions in parallel because the contact area between the two protrusions can be set large and the operation force of the lid member on the pressure contact side with the container body can be set large. Further, when the two protrusions are arranged in opposite directions, the protrusions can be crossed with each other to fix the lid member to the container body, so that the fitting strength of the lid member to the container body can be increased. . Further, when the lid member is formed in an isosceles triangle shape, the container-side protrusion and the cover-side protrusion are related to each other whether the cover member is rotated counterclockwise or clockwise with respect to the container body. Can be combined.

When the lid member is fitted to the container body, if the lid-side projection interferes with the container-side projection, it is considered that the fitting becomes difficult or the sealing performance deteriorates.
A mark is formed on the container body and the lid member to indicate a fitting start position of the lid member with respect to the container body, and the lid member is fitted to the container body at the fitting start position, thereby preventing interference between the projections. It is also possible to fit both.

The container body and the lid member may be made of a synthetic resin foam sheet material. With this configuration, when this container is used as a container for noodles such as udon and soba, and bowls such as katsudon and oyakodon, the heat retention of the contents can be improved, and when carrying or eating. In addition, fingers are not heated, which is preferable.

The container body or the lid member is engaged with the container-side projection or the lid-side projection to regulate the relative rotation of the container body and the lid member in a direction opposite to the pressure contact direction, so that the container body and the lid member are connected to each other. You may form the lock part which maintains a lid member in the pressure contact state.
In this case, the relative rotation between the container body and the lid member is regulated by the lock portion, so that the lid member can be prevented from being accidentally dropped.

Further, the container-side projection or the lid-side projection may be engaged with the lock portion by elastically deforming the container body or the lid member with a sense of moderation. In this case, the engagement between the container-side protrusion or the lid-side protrusion and the lock portion can be grasped with a sense of moderation, and the user can be provided with a sense of reliability regarding the engagement between the two. Note that such a sense of moderation is obtained when the container body or the lid member is elastically deformed, and the container-side projection or the lid-side projection clicks into the lock portion.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the container 1 includes a container body 2 and a lid member 3 that is fitted inside the container body 2. The shape of the container body 2 is bowl-shaped, assuming a container 1 for storing noodles such as udon and soba, and bowls such as katsu-don and oyako-don, but other shapes are also possible. It is.

The container body 2 and the lid member 3 are formed by molding a foamed synthetic resin sheet material made of polyethylene, polypropylene, or the like into a desired shape by vacuum molding, compression molding, or the like. Molding using the foamed synthetic resin sheet material in this manner is preferable because the heat retaining property and handleability of the container 1 can be improved, and an inexpensive molding device can be adopted. However, molding by another molding method is preferable. Is also good. For example, it is possible to fill the mold with pre-expanded beads and heat-weld it with steam to form it.If it is not made of foam,
It can be formed by vacuum molding of a synthetic resin sheet or a synthetic resin film, or can be formed by compression molding or injection molding using resin pellets.

Next, a specific configuration of the container body 2 and the lid member 3 will be described. A mounting portion 10 protruding downward is formed in a substantially annular shape at the bottom of the container main body 2, and a container-side fitting wall portion 12 gently increasing in diameter upward is provided above the peripheral wall portion 11 of the container main body 2. The container-side fitting wall 12 is formed to have a larger diameter than the peripheral wall 11, and the container-side fitting wall 12 and the peripheral wall 11 are connected to each other via a step 13. An outwardly extending flange portion 14 is formed at the upper end of the container body 2, and the flange portion 14 is formed in an arc-shaped cross section that projects upward, and when the lips are applied to the flange portion 14 to eat the contents. It is configured so that the corners do not stand.

A substantially cylindrical holding portion 20 having a bottom is formed at the center of the lid member 3, and the diameter of the lid member 3 is gradually reduced downward in the vicinity of the outer periphery of the lid member 3 with an annular groove 21 interposed therebetween. A lid-side fitting wall portion 22 is formed, and a lower end portion of the grip portion 20 and the lid-side fitting wall portion 22 are connected to each other via an annular bottom wall portion 23. The flange 24 is formed to have an arc-shaped cross section that protrudes upward so as to cover the upper side of the flange 14 of the container body 2. The collar 24
An undercut portion for holding the flange portion 14 from below may be formed on the outer peripheral portion of the cover member 3 to increase the mounting strength of the lid member 3 to the container body 2.

The lid-side fitting surface 25 on the outer surface of the lid-side fitting wall portion 22
Is configured to have a slightly larger diameter than the container-side fitting surface 15 on the inner surface of the container-side fitting wall portion 12, and the lid-side fitting wall portion 22 is fitted inside the container-side fitting wall portion 12 to form a lid member. The lid-side fitting surface 25 and the container-side fitting surface 15 are configured to be in close contact with each other when the container 3 is fitted to the container body 2. In addition, the lid side fitting wall 22
Relation between the lower end of the container and the stepped portion 13 of the container body 2 and the both flange portions 1
The positional relationship between the lids 4 and 24 is such that when the lid member 3 is fitted to the container body 2, the lower edge of the lid-side fitting wall portion 22 is in close contact with the step portion 13 of the container body 2 and the two flange portions 14 and 24 are set in a close positional relationship.

Next, the container-side projection 16 provided on the container main body 2 and the cover member 3, which are features of the present invention, are provided.
Will be described with reference to FIGS. 1 to 5. Four container-side protrusions 16 are integrally formed on the container-side fitting surface 15 at regular intervals in the circumferential direction, and eight lid-side protrusions are formed on the lid-side fitting surface 25 at regular intervals in the circumferential direction. 26 are integrally formed. The container-side protrusion 16 and the lid-side protrusion 26 are formed of elongated ridges, and the length L1 of the container-side protrusion 16 is shorter than the interval W1 between the adjacent cover-side protrusions 26 whose cosine length is adjacent. Is set to be
6 is set to be substantially the same as the length L1 of the container-side protrusion 16. Then, in a state where the container-side protrusion 16 faces the fitting start position between the adjacent cover-side protrusions 26, the container-side protrusion 16 and the cover-side protrusion 26 do not interfere with each other, and It is configured so that the lid member 3 can be fitted thereto. Further, in a state where the lid member 3 is fitted to the container main body 2, as shown in FIG.
5, the lid-side protrusion 26 is pressed against the container-side fitting surface 15, and the fitting strength between the container body 2 and the lid member 3 is increased.

The container-side protrusion 16 and the lid-side protrusion 26 are disposed substantially parallel to each other with a constant inclination angle θ with respect to the direction perpendicular to the axis of the fitting surfaces 15 and 25. With the lid member 3 fitted, the rear end 16 of the container-side projection 16 is
b is disposed above the front end 26a of the lid-side projection 26,
In this state, the lid-side protrusion 26 is moved in the direction indicated by the arrow in FIG.
The container body 2 and the lid member 3 are moved so that
When relatively moved to the position shown in FIG.
Abuts against the lower edge 16c of the container-side protrusion 16, and the cover-side protrusion 26 is moved downward, that is, the cover member 3 is pressed toward the container body 2 so that the cover-side fitting wall 22 Lower end 22a of
Is pressed against the step 13 of the container body 2, and the flange 24 of the lid member 3 is pressed against the flange 14 of the container body 2, so that the inside of the container 1 is sealed substantially in a liquid-tight manner. FIG.
As shown in (b), with the lid-side projection 26 and the container-side projection 16 positioned, the rear end 26b of the lid-side projection 26 is located above the front end 16a of the container-side projection 16. In this case, when the lid member 3 and the container main body 2 are relatively rotated in the opposite direction to open the lid, the rear end 26b of the lid-side projection 26 is formed. Abuts on the upper edge 16d of the container-side protrusion 16, and the cover-side protrusion 26 is on the upper side, that is, the cover member 3
Is operated in the direction of detaching from the container body 2, and the operability of opening the lid is improved, which is preferable.

As shown in FIGS. 1, 4, and 5, in order to indicate the fitting start position of the lid member 3 with respect to the container body 2 and to indicate the optimum relative rotation amount between the container body 2 and the lid member 3. In addition, a through hole 27 is formed in the flange portion 24 of the lid member 3, and the first mark 1 is formed in the container body 2 at intervals in the circumferential direction.
7 and the second mark 18 are formed by printing or the like.
When closing the lid, as shown in FIG. 4A, the positions of the lid member 3 and the container body 2 are adjusted in the circumferential direction so that the through holes 27 match the first marks 17, and FIG.
As shown in (b), the container-side protrusion 16 faces the fitting start position between the adjacent cover-side protrusions 26, and in this state, the container-side protrusion 16 and the cover-side protrusion 26 interfere with each other. Instead, the cover member 3 can be fitted to the container body 2. Also, with the lid closed, as shown in FIG.
By relatively rotating the container body 2 and the lid member 3 until the second mark 18 is located in the through hole 27, the lid-side projection 26 of the container-side projection 16 and the lid-side projection 26 as shown in FIG. Are configured to obtain the optimum engagement relationship. However, a notch may be provided in place of the through hole 27, or the flange 14 of the container body 2 may be provided.
Is made larger in diameter than the flange 24 of the lid member 3 so that the flange 1
The fitting position and the relative rotation position may be indicated by printing marks at appropriate positions of the 4, 24, respectively.

The number of the container-side protrusions 16 and the number of the cover-side protrusions 26 can be set arbitrarily. However, it is preferable to provide three or more cover members 3 so that the cover member 3 is pressed against the container body 2 in a well-balanced manner. . In addition, the number of the container-side protrusions 16 and the lid-side protrusion 26
May be the same, but the number of the container-side protrusions 16 may be set to be a multiple of the number of the lid-side protrusions 26, or the number of the lid-side protrusions 26 may be set to a multiple of the number of the container-side protrusions 16. May be set. In this case, as shown in FIG. 4, after the cover member 3 is fitted to the container body 2, the relative rotation amount is reduced when the cover member 3 is pressed against the container body 2 by relatively rotating the container. It is possible to improve the operability at the time of closing the lid.
However, since the container-side protrusion 16 is formed at a position easily visible on the upper inner surface of the container body 2, the number of the cover-side protrusions 26 is reduced in order to minimize the appearance of the container body 2 as much as possible. It is preferable that the number of the protrusions 16 is set to be plural times.

If the angle of inclination θ between the container-side projection 16 and the lid-side projection 26 is too large, the width of the fitting surface becomes large and the amount of stored contents decreases, and if too small, the lid member when closing the lid. Since the relative rotation angle between the container 3 and the container body 2 becomes too large, θ is set to 5 ° to 15 °, preferably 8 ° to 12 °.

Although the lengths of the container-side protrusion 16 and the lid-side protrusion 26 are set to be the same, they may be set to different lengths. Also,
Although the container-side protrusion 16 and the lid-side protrusion 26 are formed by protrusions, at least one of them may be formed by a position or a plurality of circular or elliptical protrusions. For example, as shown in FIG. 6, a circular lid-side projection 26A is provided in place of the lid-side projection 26, and the lid member 3 and the container body 2 are relatively rotated from the state shown in FIG. (B), the lid-side protrusion 26A may be configured to contact the container-side protrusion 16 and move the lid member 3 toward the pressure contact side with the container body 2. However, since the length of one protrusion affects the relative rotation angle when the lid member 3 is pressed against the container body 2, the relative length between the lid member 3 and the container body 2 is too short or too long. Since the operability during rotation is reduced, the center angle of the fitting surfaces 15 and 25 is 15 to 25 °,
It is preferable to set the length to 20 to 30 mm. At least one of the container-side protrusion 16 and the lid-side protrusion 26 is formed into an isosceles triangle like the container-side protrusion 16B and the cover-side protrusion 26B shown in FIG. The lid member 3 may be configured to be pressed against the container body 2 by contacting one inclined side with the other inclined side of the lid-side projection 26B. In this case, even if the container body 2 and the lid member 3 are relatively rotated in opposite directions, the lid member 3 can be pressed against the container body 2, which is preferable.

The container-side protrusion 16 and the cover-side protrusion 26 are inclined in opposite directions so that the protrusions 16 and 26 can intersect by the relative rotation of the cover member 3 and the container body 2. Is also good. For example, as shown in FIG. 8, a lid-side protrusion 16C inclined in the opposite direction may be provided instead of the lid-side protrusion 26.
This configuration is preferable because the fitting strength between the lid member 3 and the container body 2 can be further increased.

In the above-described embodiment, the container 1 is formed in a bowl shape. However, for example, when storing miso soup or soup, the container 1 may be formed in a bowl shape or in a ramen or soup according to the contents to be stored. When accommodating, it is formed in a cup shape,
When storing salads and desserts, etc., it can be formed into an arbitrary shape, such as a ball shape, or when storing okonomiyaki, yakisoba, spaghetti etc., it is formed into a flat dish shape. is there. Specifically, when formed in a flat dish shape, as shown in FIGS. 9 and 10, the container 1D includes a container main body 2D and a lid member 3D,
A container-side fitting wall portion 12D is formed near the outer periphery of the container body 2D, and a container-side protrusion 16 is formed on the container-side fitting surface 15D on the inner surface side of the container-side fitting wall portion 12D.
A lid-side fitting wall 22D is formed in the vicinity of the outer periphery, and a lid-side projection 26 is formed on a lid-side fitting surface 25D on the outer surface side of the lid-side fitting wall 22D.

In the container 1, in order to prevent the cover member 3 from being inadvertently dropped from the container body 2, the cover member 3 is kept in close contact with the container body 2 and the two members are kept in close contact with each other. Locking means may be provided. For example, FIGS.
Like a container 1E shown in FIG. 13, four upward isosceles triangular container-side protrusions 30 each having a top 30a are formed on a container-side fitting wall portion 12E of a container body 2E, and the lid member 3E has a lid-side portion. Four downwardly isosceles triangular lid-side protrusions 31 each having a top portion 31 a are formed on the fitting wall portion 22 </ b> E, and both ends of a pair of facing container-side protrusions 30 </ b> A of the four container-side protrusions 30 facing each other. A lock portion 32 is formed in the portion, which engages with the top portion 31a of the lid-side protrusion 31 to maintain the close contact state of the lid member 3E with the container body 2E. Then, as shown in FIG. 13A, the container main body 2E is fitted with the lid member 3E such that the lid side projection 31 is located between the container side projections 30, and FIG. In FIG. 3, the lid member 3E and the container body 2E are moved so that the lid-side projection 31 moves to the left with respect to the container-side projection 31.
13B, the lock portion 32 abuts on the inclined side 31b of the lid-side protrusion 31 to press the lid member 3E against the container main body 2E as shown in FIG. As shown in FIG. 13 (c), the lid-side protrusion 31 gets over the inside of the lock portion 32 in the radial direction and snaps into the V-groove 33, so that the lid member 3E is It will be configured to be held in close contact with 2E.

According to this container 1E, the relative rotation between the container body 2E and the lid member 3E is regulated by the engagement of the top portion 30a of the container side projection 30 with the V groove 33 of the lock portion 32, and the container body The lid member 3E is kept in close contact with the lid 2E. Moreover, even when the lid member 3E is relatively rotated in the opposite direction with respect to the container body 2E, the top portion 30a of the container-side projection 30 is engaged with the lock portion 32, and the lid member 3E is in close contact with the container body 2E. Is maintained. Further, due to the elastic deformation of the material of the container body 2E or the lid member 3E, the top 31a of the lid-side projection 31 gets over the radially inner side of the lock portion 32 and engages with the V-shaped groove 33, so that the lid-side projection is formed. 31 can be given a moderation feeling to the lock portion 32.

The container-side protrusion 30 and the lid-side protrusion 31 are
Although formed in the shape of an equilateral triangle, it may be constituted by a ridge like the above-mentioned protrusions 16 and 26. In addition, although the lock portions 32 are provided only on the pair of container-side protrusions 30 facing each other, the lock portions 32 may be provided on the four container-side protrusions 30, respectively, or both ends of the container-side protrusions 30 may be provided. Although the lock portion 32 is provided in the portion, the lock portion 32 may be provided only at the end of one of the container-side protrusions 30.
The lock portion 32 may have any configuration as long as the lock portion 32 engages with the container-side protrusion 30 in a state where relative rotation is restricted. Further, the lock portion may be formed in a step-like shape so that the degree of close contact between the lid member and the container body is increased stepwise. Further, a lock portion is formed on the lid-side protrusion 31, and this lock portion is connected to the container-side protrusion 3.
0 and the lid member 3E and the container body 2
You may comprise so that close contact with E may be maintained. Further, in the present embodiment, the lid member 3E and the container body 2E are manufactured by vacuum forming the synthetic resin sheet in order to give a sense of moderation when the lock portion 32 is engaged with the lid-side projection 31. Similar locking means can be provided for a container using a foamed synthetic resin sheet material.

[0029]

According to the container of the present invention, a sufficient sealing property can be ensured when the lid is closed, and the lid member can be removed with a small operating force when the lid is opened, so that the contents can be spilled when carrying or opening the lid. That the container-side protrusion and the cover-side protrusion can be sufficiently secured by pressing the cover-side protrusion and the container-side protrusion against the fitting surface. Can be placed in a small space in the vertical direction, and the space for storing contents can be set wide without configuring a large container,
It is possible to mold without dividing the mold of the container body or the lid member, and it is possible to obtain an effect that an inexpensive molding apparatus can be used.

When the pitch of the container-side protrusion or the cover-side protrusion in the circumferential direction is set to be a multiple of the cover-side protrusion or the container-side protrusion, the container-side protrusion and the cover-side protrusion engage. The operability of closing the lid can be improved by reducing the rotation operation angle before the operation.

When the container-side protrusion and the lid-side protrusion are arranged in parallel, the contact area between the two protrusions is set large.
This is preferable because the operation force of the lid member on the pressure contact side with the container body can be set large. When the container-side protrusion and the cover-side protrusion are arranged in opposite directions, the protrusions intersect with each other and the cover member can be fixed to the container body, so that the fitting strength of the cover member to the container body is increased. It becomes possible. Further, when the container-side protrusion or the cover-side protrusion is formed in an isosceles triangular shape, the container-side protrusion and the cover can be rotated even if the cover member is rotated counterclockwise or clockwise with respect to the container body. It is possible to engage the side projection.

When a mark indicating the fitting start position of the lid member with respect to the container body is formed on the container body and the lid member, the lid member can be fitted to the container body so that the projections do not interfere with each other. Become. When the container body and the lid member are made of synthetic resin foam sheet material, it is possible to improve the heat retention when hot food is put as contents, and to make it harder to carry fingers when carrying or eating. Can be prevented, and the handleability of the container can be improved.

When the lock portion is formed on the container main body or the lid member, the relative rotation between the container main body and the lid member is restricted, so that the lid member can be prevented from being accidentally dropped. Further, when the container-side projection or the lid-side projection can be engaged with the locking portion by providing the container body or the lid member with a moderation feeling by elastic deformation, the engagement between the two can be performed by the moderation feeling. It is possible to grasp, and it is possible to give the user a sense of trust in the engagement between the two.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view with a part of a container cut away.

FIG. 2 is a longitudinal sectional view of the container in a state where a lid member is separated.

FIG. 3 is a longitudinal sectional view of the container in a state where a lid member is fitted.

4A is a plan view of the vicinity of a flange portion of a container body and a lid member during a lid closing operation, and FIG. 4B is a developed view of a fitting surface.

FIG. 5A is a plan view of the vicinity of a flange portion of the container body and the cover member when the cover is completed, and FIG. 5B is a developed view of a fitting surface.

6A is a developed view of a fitting surface of a container body and a lid member having another configuration when the lid is closed, and FIG. 6B is a developed view when the lid is completed.

7A is a developed view of the fitting surface of the container body and the cover member having another configuration when the cover is closed, and FIG. 7B is a developed view when the cover is completed.

8A is a development view of the fitting surface of the container body and the lid member having another configuration when the lid is closed, and FIG. 8B is a development view when the lid is completed.

FIG. 9 is a vertical cross-sectional view of a container having another configuration in which a lid member is separated.

FIG. 10 is a vertical cross-sectional view of a container having another configuration in which a lid member is fitted.

FIG. 11 is an exploded perspective view of a container having another configuration.

FIG. 12 is a longitudinal sectional view of the container.

FIG. 13A shows the container-side protrusion and the lid-side protrusion of the container.
Is a development view at the time of lid closing operation, (b) is a development view during the lid closing operation, and (b) is a development view at the time of lid closing completion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container 2 Container main body 3 Lid member 10 Placement part 11 Peripheral wall part 12 Container side fitting wall part 13 Step part 14 Flange part 15 Container side fitting surface 16 Container side protrusion 16a Front end 16b Rear end 16c Lower edge 16d Upper edge 17 1st mark 18 2nd mark 20 gripping part 21 annular groove 22 lid side fitting wall part 22a lower end part 23 bottom wall part 24 flange part 25 lid side fitting surface 26 lid side protrusion 26b rear end 26a front end 27 through hole 26A lid-side projection 16B container-side projection 26B lid-side projection 26C lid-side projection 1D container 2D container body 3D lid member 12D container-side fitting wall 15D container-side fitting surface 22D lid-side fitting wall 25D lid Side fitting surface 1E Container 2E Container main body 3E Cover member 12E Container-side fitting wall 22E Cover-side fitting wall 30 Container-side protrusion 30A Container-side protrusion 30a Top 31 Cover-side protrusion 31a Top 31b Inclined side 2 lock portion 33 V groove

Claims (9)

[Claims] 1. A container comprising: a container main body; and a lid member internally fitted to the container main body, wherein the container is formed at regular intervals in a circumferential direction on a fitting surface of the container main body and a fitting surface of the lid member. A container-side protrusion and a cover-side protrusion that are engaged with each other by the relative rotation of the cover member and the container body, and operate the cover member toward the pressure contact side of the container body. And a container. 2. The container according to claim 1, wherein an arrangement pitch of the container-side protrusion or the cover-side protrusion in the circumferential direction is set to be a multiple of the cover-side protrusion or the container-side protrusion. 3. The container-side projection and the lid-side projection are formed of elongated ridges, and the container-side projection and the lid-side projection have a fixed inclination angle with respect to the axial direction of the fitting surface. The container according to claim 1, wherein the container is attached in substantially parallel. 4. The container-side projection and the lid-side projection are formed by elongated projections, and the container-side projection and the lid-side projection are arranged in directions opposite to each other with respect to the axial direction of the fitting surface. 3. The container according to claim 1, wherein the container is arranged at a predetermined inclination angle. 5. The container according to claim 1, wherein at least one of the container-side protrusion and the lid-side protrusion is formed in an isosceles triangle shape. 6. The container according to claim 1, wherein a mark indicating a fitting start position of the lid member with respect to the container body is formed on the container body and the lid member. 7. The container according to claim 1, wherein the container body and the lid member are made of a synthetic resin foam sheet material. 8. The container body or the lid member is engaged with a container-side projection or a lid-side projection to regulate relative rotation of the container body and the lid member in a direction opposite to a pressing direction, The container according to any one of claims 1 to 7, wherein a lock portion for maintaining the container body and the lid member in a pressed state is formed. 9. The container according to claim 8, wherein the container-side projection or the lid-side projection can be engaged with the lock portion by elastically deforming the container body or the lid member with a sense of moderation.