JPH0948444A - Container with fitting cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and securely close the cover of a container provided with the fitting cover, made by the pressure forming or the vacuum forming and smoothly open it without reactions. SOLUTION: The upper peripheral edge is made as an upper folded edge 2 and notches 6 in which fitting protrusions 14 of the cover can be inserted, are formed at the external part. The first protrusion 7 and the second protrusion 9 are continually projected upward from the flange face 3 and appropriately shifted at every fixing distance larger than the width of the fitting protrusion in the cover, on the circumferential face. Against this synthetic resin container body 1, the lower peripheral edge is made as a lower edge 11 to be fitted. The fitting protrusions 14 fitting into the notches 6 are formed from the external side end to the inside. And the cover 10 formed so as to fix downward the fixing protrusions 15 to the fixing space 8, is fitted at a position nearer than the first protrusion 7 in the circumferential direction from the fitting protrusion 14 on the horizontal face 12. When rotating the cover, the fitting protrusions 14 get over the first protrusion 7 and the protrusions 14 are fixed in the fixing space 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid fitting container made of synthetic resin, and more particularly to a lid fitting container suitable for thermoforming molding such as pressure air vacuum molding.

[0002]

2. Description of the Related Art Conventionally, many food storage containers are manufactured by pressure air vacuum forming. However, in order to prevent the lid fitted on the container body from coming off, the flange portion of the container body and the flange portion of the lid are used. A container body and a lid, which are molded with a fitting portion adapted to be fastened with adhesive tape, a stapler, or the like, or with a slight force fitting, have been used. The above-mentioned fitting structure has a concave-convex fitting portion that is pressed and fitted in the vicinity of the flange portion in the vertical direction, and the concave-convex fitting portion is engaged when the lid fitted to the container body is pressed. The lid was then fastened.

[0003]

However, in the case of the lid fitted by pressing in the vertical direction, it is necessary to peel off the container body downward and the lid upward in the separating direction when opening the lid. Depending on the situation, there is a possibility that the container body may be repeated or a part of the stored items may be scattered due to the reaction of the separating action. The present invention solves the above-mentioned problems and allows the lid to be fitted onto the container body to be easily fixed, and the lid can be opened by an extremely smooth opening operation without giving a reaction to the container body when the lid is opened. It is intended to provide a lid fitting container capable of

[0004]

In order to solve the above-mentioned problems, the present invention provides a synthetic resin container main body having an upper peripheral edge portion with a bent upper edge portion, and a lid on the outer side portion of the upper edge portion. One or two or more notches into which the fitting protrusions can be fitted are formed, and the first protrusions as engagement guides and the second protrusions as stoppers are provided at the upper edge positions that are appropriately displaced in the circumferential direction from the notches. A container main body having a structure in which projections are continuously arranged at a locking interval equal to or larger than the width of the fitting projection of the lid, and a lower peripheral edge portion of the synthetic resin lid is covered with an upper edge portion of the container main body. A lower edge portion to be fitted, and one or two or more fitting protrusions which can be fitted into the cutout portion are formed inward from the outer end portion of the lower edge portion and fitted when the fitted lid is rotated. The lid fitting container is constituted by a lid having a structure in which the mating protrusion is formed so as to be able to be locked in the locking gap portion.

In the above, the first protrusion and the second protrusion of the container body are projected downward from the upper surface of the upper edge portion, and the fitted lid is rotated to rotate the upper portion of the fitting protrusion and the lower portion of the first protrusion. It is possible to form the lid portion or the container body portion so that they can be slightly deformed by the pressure when they come into contact with each other. The first and second projections of the container body are provided so as to project outward from the inner portion of the upper edge portion, and the fitted lid is rotated to move the tip of the fitting projection and the tip of the first projection. It may be formed so that the lid portion or the container body portion can be slightly deformed by pressurization when they come into contact with each other.
In any case, the second projection is provided to be slightly higher than the first projection, or the side surface of the cutout portion of the first projection is a gently inclined surface, and the side surface of the cutout portion of the second projection is a steep or orthogonal surface. Or a combination of both structures is preferable.

Further, according to the present invention, the upper peripheral edge portion of the synthetic resin container main body is a bent upper edge portion, and the cutout portion into which the fitting protrusion of the lid can be fitted is formed on the outer side portion of the upper edge portion. Form two or more,
A first protrusion as an engagement guide and a second protrusion as a stopper are provided at an upper edge position at a position appropriately deviated from the notch portion in the circumferential direction, and a width of the locking projection of the lid or a locking interval larger than the width. And a container main body having a structure in which the lower end of the lid made of synthetic resin is fitted to the upper edge of the container main body, and the inside from the outer end of the lower edge. One or two or more fitting projections that can be fitted into the notches are formed on one side at regular intervals, and are displaced in the circumferential direction from the fitting projections, from the position corresponding to the first projection of the container body to the second projection. Is a lid having a structure in which a locking projection is formed on a peripheral edge portion at a position displaced in the opposite direction, and the locking projection is formed so as to be locked in the locking gap when the fitted lid is rotated. It is also characterized in that a lid-fitting container is constituted by the above.

In the above, the first protrusion and the second protrusion of the container main body are projected upward from the upper edge portion, and the locking projections of the lid are projected downward from the peripheral edge portion to rotate the fitted lid. Thus, when the lower part of the locking projection and the upper part of the first projection come into contact with each other, the lid part or the container body part can be slightly deformed by pressure. Also, the first and second protrusions of the container main body are projected inside the upper edge portion, and the locking projections of the lid are projected downward from the inside of the lower edge portion, and the lid fitted is rotated. It is also possible to form the lid portion or the container main body portion so that they can be slightly deformed by pressure when the tip portion of the locking projection and the tip portion of the first projection abut. In any case, the second projection is provided to be slightly higher than the first projection, or the side surface of the cutout portion of the first projection is a gently inclined surface, and the side surface of the cutout portion of the second projection is a steep or orthogonal surface. Or a combination of both structures is preferable.

According to the above construction, the fitting projection of the lid is fitted into the notch or the recess of the container body, and then the lid is rotated by applying a slight external force (the container body may be rotated. The same thing), the fitting protrusion or the locking protrusion gets over the first protrusion while being in pressure contact with the first protrusion, hits the second protrusion, is locked in the locking gap, and is housed. It becomes difficult for the lid to come off from the container body as soon as it becomes a state, the lid can be easily closed, and there is no fear that the lid will come off without permission. To open the lid, if a slight external force is applied and the lid is rotated in the reverse direction, the locked state is released, and the fitting protrusion can be removed from the notch or the recess, without giving an impact to the container. The lid can be easily opened without deforming or damaging the container.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1 to 5 show the first embodiment, and FIGS.
Shows a second embodiment, and FIGS. 9 to 10 show a third embodiment.

In the embodiment shown in FIGS. 1 to 5, both the container body 1 and the lid 10 are formed by appropriately pressure-pressure vacuum forming a synthetic resin material. The container body 1 is a container having an upper peripheral edge portion having a circular shape in a plan view, and having an appropriately shaped peripheral side surface and a bottom surface. The upper peripheral edge portion has a container inner portion 3, an outer bent horizontal collar portion 4, The outer side portion 5 hanging outward is formed as an upper edge portion 2 which is sequentially bent in an inverted U shape, and the outer side portion of the collar portion 4 and the outer side portion 5 are cut out so that a fitting protrusion 14 of a lid described later is formed. A notch 6 slightly larger than the planar shape of the fitting protrusion 14 may be formed so that the notch 6 can be fitted therein, and the notch 6 may be formed at only one position on the upper edge portion 2, but as shown in the drawing, a certain interval is provided. The first protrusion 7 is formed at a plurality of locations on the flange 4 at a position appropriately separated from the notch 6 in one direction, and the first protrusion 7 has a gentle guide slope on the side surface in the notch 6 direction. The surface 7a and the opposite side surface are formed as a steep upright surface 7b, and further, between the first projection 7 and the locking projection 15 of the lid, the width of the locking projection 15 or more The second projection 9 is formed in the flange portion 4 at a section 8, the second projection 9 is made to form as appropriate shape opposite the elevation 9a first protrusion 7 side.

The lid 10 is a lid to be fitted on the upper edge portion 2 of the container body 1, and forms a lower edge portion 11 serving as a lower peripheral edge portion on the outer side of the top surface of an arbitrary shape. , An annular horizontal surface 12 that can be joined to the collar portion 4 of the container body, and an outer side portion 13 that folds and hangs outward from this, and has an appropriate size from the lower portion of the outer side portion 13 toward the inside of the lid. The fitting protrusions 14 are formed at only one place or at a plurality of places with a constant interval corresponding to the cutout portion 6 of the container body, and the space between the horizontal surface 12 and the fitting protrusions 14 is set to the outer part 5 of the container body. Of the first projection 7 or the second projection 9, whichever is higher, is set to be approximately the same as or slightly larger than the total size of the heights of the first projection 7 and the second projection 9, and the distance from the fitting projection 14 is the same as the notch 6 and the first projection. A locking projection 15 having a size that can be engaged with the locking interval portion 8 is formed on a portion of the horizontal surface 12 that is shorter than the distance between the projections 7. It has been made by.

According to the container having the above-mentioned structure, the lid 10 is fitted on the container body 1 so that the fitting projection 14 is fitted into the notch 6, and the lid 10 is rotated thereon. 14 moves horizontally in such a manner that the collar portion 4 and the outer side portion 5 are sandwiched between the horizontal surface 12, and the locking projection 15 moves on the collar portion 4 to guide the guide inclined surface 7a of the first projection 7. Abut. At this time, if the lid is rotated with a slight force applied, one or more of the lid portion or the container body portion, that is, the fitting protrusion 14, the collar portion 4 and the outer portion 5, the first protrusion 7, and the locking protrusion 15 are provided. The portion is deformed appropriately, the locking projection 15 rides over the first projection 7 and engages with the locking gap portion 8, and is abutted against the first projection 7 and the second projection 9 on both sides to be fixed. In this state, the fitting protrusion 14 is fitted to the lower side of the collar portion 4, and therefore the lid 10 does not come off.

To open the lid, the lid 10 is operated in the reverse of the above-described lid closing operation and is returned and rotated, so that the locking projection 15 returns beyond the first projection 7 and the fitting projection 14 is cut out. Since it returns to 6, the lid 10 can be removed.

As described above, in the lid fitting container of the present invention, the fitted lid is easily locked and disengaged by rotating the lid by applying a slight external force and overcoming a slight uneven portion. There is no fear. Also, the lid can be easily removed by applying a slight amount of external force and rotating it back. The portion related to the locking structure does not interfere with the container, and the container can be easily manufactured.

FIGS. 6 to 8 show another embodiment, in which both the container body 1 and the lid 10 are formed by appropriately pressure-pressure vacuum forming a synthetic resin material. The container body 1 has an upper edge portion 2 in which an inner portion 3, a collar portion 4, and an outer portion 5 are sequentially bent in an inverted U shape as in the above embodiment, and a notch portion 6 is formed in the same manner. The collar portion 4 at a position appropriately separated from the notch portion 6 in one direction.
A first protrusion 7 is formed downward from the first protrusion 7, the side face in the direction of the notch 6 is formed as a gentle guide slope, and the opposite side is formed as a steep upright face. The collar portion 4 is provided with a locking interval portion 8 that is equal to or wider than the width of the mating protrusion 14.
A second protrusion 9 is formed downward from, and the second protrusion 9 is formed such that the first protrusion 7 side is an upright surface and the opposite side is an appropriate shape.

The lid 10 has a horizontal surface 1 similar to that of the above embodiment.
2 and an outer edge portion 13 having a lower edge portion 11 and a fitting protrusion 14 formed in the same manner, and the distance between the horizontal surface 12 and the fitting protrusion 14 is set to the height of the first protrusion 7 of the container body. It is set to be slightly smaller than the minute.

According to the container having the above-described structure, the lid 1 is formed by fitting the fitting projection 14 into the notch 6 as in the above-described embodiment.
When 0 is fitted to the container body 1 and the lid 10 is rotated on the container body 1, the fitting protrusion 14 moves horizontally in such a manner that the flange portion 4 and the outer portion 5 are sandwiched between the horizontal surface 12. At the same time, the fitting protrusion 14 contacts the first protrusion 7. At this time, if the lid is rotated with a slight force applied, the fitting protrusion 14 will pass over the first protrusion 7 by utilizing partial deformation, and the locking gap 8
, The first protrusion 7 and the second protrusion 9 on both sides are abutted against each other, and the lid 10 is fixed. To open the lid, the reverse operation may be performed as described above.

9 to 10 show still another embodiment, in which both the container body 1 and the lid 10 are formed by appropriately pressure-pressure vacuum forming a synthetic resin material. The container body 1
Similar to the above-described embodiment, the inner portion 3, the collar portion 4, and the outer portion 5 are sequentially bent into an inverted U shape to form the upper edge portion 2, and the notch portion 6 is formed in the same manner as described above. A first protrusion 7 is formed from an inner side portion 3 (including the inner side of the collar portion 4) at a position appropriately separated in one direction toward the outer side, and the first protrusion 7 is a cutout portion 6.
The side surface in the direction is formed as a gently inclined guide surface, and the opposite side surface is formed as a steep upright surface.
A second protrusion 9 is formed in the same manner as the first protrusion with a locking gap portion 8 having a width equal to or larger than the width of the second protrusion 9 and the second protrusion 9 has an appropriate shape on the opposite side with the first protrusion 7 side as an upright surface. It is formed as a thing.

The lid 10 has a horizontal surface 1 similar to the above-mentioned embodiment.
2 and an outer portion 13 having a lower edge portion 11 and a fitting protrusion 14 formed in the same manner. When the lid is fitted to the container body, at least the tip portion of the fitting protrusion 14 is the first protrusion 7. It is configured so that it can be engaged with the locking gap portion 8 between the second protrusion 9.

According to the container having the above-mentioned structure, as in the above-mentioned embodiment, the lid 1 is formed so that the fitting projection 14 is fitted into the notch 6.
When 0 is fitted to the container body 1 and the lid 10 is rotated on the container body 1, the fitting protrusion 14 moves horizontally in such a manner that the flange portion 4 and the outer portion 5 are sandwiched between the horizontal surface 12. At the same time, the tip end side of the fitting protrusion 14 contacts the first protrusion 7. At this time, if the lid is rotated with a slight force applied, the fitting protrusion 14 rides over the first protrusion 7 and engages with the engaging gap portion 8 by utilizing partial deformation, and the first protrusion 7 on both sides is engaged. The first protrusion 7 and the second protrusion 9 are placed in a state of abutting against each other, and the lid 10 is not detached. To open the lid, the reverse operation may be performed as described above.

Although not shown, unlike the above-described embodiment, the first projection and the second projection are provided inwardly on the inner side of the upper edge of the container body and can be engaged with both projections. It is also possible to employ a structure in which the locking projection is provided so as to project downward from the inside of the lower edge of the lid.

[Brief description of drawings]

FIG. 1 is a perspective view showing a lid and a container body according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view taken along the line II-II of FIG.

FIG. 3 is a partial sectional view taken along the line III-III in FIG.

FIG. 4 is a partial cross-sectional view taken along the line IV-IV of FIG.

5 is a schematic side view showing a state where the lid and the container body of FIG. 1 are fitted and locked, (A) before fitting, (B) during fitting, FIG.
(C) is a diagram when locked.

FIG. 6 is a perspective view showing a lid and a container body according to another embodiment of the present invention.

FIG. 7 is a partial cross-sectional view taken along the line VII-VII of FIG.

8 is a schematic side view showing a state in which the lid and the container body of FIG. 6 are fitted and locked, (A) before fitting, (B) during fitting,
(C) is a diagram when locked.

FIG. 9 is a perspective view showing a lid and a container body according to still another embodiment of the present invention.

10 is a schematic plan view showing a fitting and locking state of the lid and the container body of FIG. 9, (A) before fitting, (B) during fitting,
(C) is a diagram when locked.

[Explanation of symbols]

 1 Container Main Body 2 Upper Edge Part 3 Inner Part 4 Collar Part 5 Outer Part 6 Notch Part 7 First Protrusion 8 Locking Space Part 9 Second Protrusion 10 Lid 11 Lower Edge Part 12 Horizontal Surface 13 Outer Part 14 Fitting Protrusion 15 Locking protrusion

Claims (6)

[Claims] 1. A synthetic resin container main body has an upper peripheral edge portion as a bent upper edge portion, and one or more cutout portions into which a fitting protrusion of a lid can be fitted are formed on an outer side portion of the upper edge portion. , The first protrusion as an engagement guide and the second protrusion as a stopper are locked to the upper edge position which is appropriately displaced in the circumferential direction from the cutout portion by the width or width of the fitting protrusion of the lid or more. A container body having a structure in which they are continuously arranged at intervals, and a lower peripheral edge portion of a synthetic resin lid is set as a lower edge portion which is fitted to an upper edge portion of the container body, and from an outer end portion of the lower edge portion. A configuration in which one or two or more fitting protrusions that can be fitted into the cutouts are formed inward, and the fitting protrusions are formed so as to be locked in the locking gaps when the fitted lid is rotated. A lid-fitting container comprising a lid having. 2. The first projection and the second projection of the container body are projected downward from the upper surface of the upper edge portion, and the fitted lid is rotated so that the upper portion of the fitting projection and the lower portion of the first projection are rotated. The lid fitting container according to claim 1, wherein the lid portion and the container body portion are formed so as to be slightly deformable by pressurization when they come into contact with each other. 3. The first projection and the second projection of the container body are projected outward from the inner side of the upper edge portion, and the fitted lid is rotated to move the tip of the fitting projection and the first projection. The lid-fitting container according to claim 1, wherein the lid portion or the container body portion is formed so as to be slightly deformable by pressurization when the tip portion abuts. 4. A synthetic resin container main body has an upper peripheral edge portion as a bent upper edge portion, and one or more notches into which a fitting protrusion of a lid can be fitted are formed on an outer side portion of the upper edge portion. , The first protrusion as an engagement guide and the second protrusion as a stopper at the position of the upper edge portion appropriately displaced in the circumferential direction from the cutout portion, and the width of the locking projection of the lid or more than the width of the locking projection. A container body having a structure in which they are continuously arranged at intervals, and a lower peripheral edge portion of a synthetic resin lid is set as a lower edge portion which is fitted to an upper edge portion of the container body, and from an outer end portion of the lower edge portion. One or two or more fitting projections that can be fitted into the cutouts are formed inwardly, and the fitting projections are circumferentially displaced from the fitting projections, and a second projection is formed from a position corresponding to the first projection of the container body. A locking projection is formed on the peripheral edge at a position offset in the opposite direction, and the locking projection locks in the locking gap when the fitted lid is rotated. Lid fitting container comprising a lid consisting has a configuration formed in ability. 5. The first protrusion and the second protrusion of the container main body are projected upward from the upper edge portion, the locking projections of the lid are projected downward from the peripheral edge portion, and the fitted lid is rotated. 5. The lid fitting container according to claim 4, wherein the lid portion or the container body portion is formed so as to be slightly deformable by pressurization when the lower portion of the locking protrusion and the upper portion of the first protrusion contact each other. . 6. The first protrusion and the second protrusion of the container main body are projected inside the upper edge portion, and the locking projections of the lid are projected downward from the inside of the lower edge portion to rotate the fitted lid. 5. The structure according to claim 4, wherein the lid portion or the container body portion is formed so as to be slightly deformable by pressurization when the distal end portion of the locking projection and the distal end portion of the first projection are moved and brought into contact with each other. Lid fitting container.