JP4823951B2 - container - Google Patents

Description

  The present invention relates to a container.

  As a container for food such as milk potion and jelly, a container with a sheet-like lid attached to the flange of a bottomed cylindrical container body in a peelable manner and the opening end face of the container body sealed is generally widely used. Is provided. In this type of container, when the contents are consumed, the lid is peeled off to open part or all of the open end face, and the contents in the container are taken out from there.

  However, when the lid is peeled off and opened, a part of the contents in the container may be scattered outside from the opened position. One cause of this phenomenon is the internal pressure in the container. That is, when storing the contents in the container, the high-temperature contents subjected to heat sterilization are filled in the container body, and immediately after that, the lid is attached to the flange portion of the container body to seal the container. . Thereafter, since the container is cooled to room temperature or lower, the air in the container contracts and the container is in a reduced pressure state. For this reason, it is considered that when the lid is peeled off, external air rapidly flows into the container from the opened position, and the contents in the container jump out by the reaction.

Therefore, a container having a bellows part that can extend and contract in the axial direction on the side wall part of the container body has been proposed. In this container, when the contents are filled in the container, the bellows portion is in a contracted state. And before peeling off a cover body, the internal volume of a container main body is enlarged by extending the said bellows part, and the liquid level of the content in a container is lowered | hung. Thereby, popping out of the contents when the lid is peeled off can be suppressed (for example, see Patent Document 1).
Japanese Utility Model Publication No. 62-108240

  However, in the conventional container having the bellows portion described above, since the bellows portion is provided on the side wall portion of the container body, an external force for expanding and contracting the bellows portion is likely to act, and the internal volume of the container body is increased or decreased by the unexpected external force. Problem arises. For example, when the bellows part is contracted by an unexpected external force, the liquid level of the contents in the container rises, and the effect of suppressing the jumping of the contents at the time of opening cannot be obtained.

  The present invention takes the above-described conventional problems into consideration, and can suppress the pop-out of the contents at the time of opening and suppress the disadvantage that the internal volume of the container body is increased or decreased by an unexpected external force. It aims to provide a container that can be used.

  In the container according to the present invention, a flange portion is provided at the opening edge of a bottomed cylindrical container main body containing the contents, and a sheet-like lid is detachably attached to the flange portion. In the container in which the opening end surface of the container is sealed, a recess is formed in the bottom of the container main body so as to be recessed toward the inner side of the container in the axial direction, and the recess is formed on the outer side of the container from the inner side of the container in the axial direction. A bottom plate part that can be pulled out toward the container is provided, and the bottom plate part is provided with a knob that protrudes outward in the axial direction of the container.

  With such a feature, when the container body is filled with the contents and the opening end surface of the container body is sealed with the lid, the bottom plate portion is disposed at a position on the inner side of the container. Then, after sealing the container, the bottom plate portion is pulled out from the container inner side in the axial direction toward the container outer side by picking the knob and pulling it toward the container outer side in the axial direction. Thereby, the internal volume of a container main body becomes large, and the liquid level of the contents in a container main body falls. That is, the liquid level of the contents is kept away from the open end surface of the container body.

  Moreover, it is preferable that the container which concerns on this invention is pulled out toward the container outer side from the container inner side of an axial direction by reversing the said baseplate part to an axial direction on the basis of the outer periphery.

  Thereby, the baseplate part which can be pulled out to an axial direction is implement | achieved by simple structure.

  Further, in the container according to the present invention, a grounding portion that is connected to the opening edge of the concave portion and extends in the radial direction of the container is provided at the bottom portion, and the tip of the knob portion is in a state where the bottom plate portion is pulled out. It is preferable that the container is disposed on the inner side of the container in the axial direction from the grounding portion.

  As a result, even when the bottom plate portion is pulled out, the tip of the knob is arranged in the recess without protruding, so that the grounding portion can be grounded in a stable state.

  According to the container of the present invention, the content of the contents in the container body is lowered by pulling the bottom plate portion from the container inner side in the axial direction toward the container outer side, so the contents at the time of opening Can be prevented from jumping out. In addition, since the bottom plate portion is provided in a recess formed in the bottom portion of the container body, the bottom plate portion is unlikely to be pulled out or pulled back by an unexpected external force, and the internal volume of the container body is unexpectedly increased or decreased. Inconveniences can be suppressed. Further, since the bottom plate portion is provided with the knob, the bottom plate portion can be easily pulled out. Thereby, the operation | work which pulls out a baseplate part can not only be performed after a manufacturer seals, but a consumer can also perform it by himself before consumption.

  Hereinafter, embodiments of a container according to the present invention will be described with reference to the drawings.

  FIG. 1 is a half sectional view of a container 1 according to the present embodiment, (a) is a diagram showing a state before the bottom plate portion is pulled out, and (b) is a diagram showing a state where the bottom plate portion is pulled out. is there. In addition, the code | symbol O shown in FIG. 1 has shown the central axis of the container 1, and the extension direction (vertical direction in FIG. 1) of this central axis O is described as an axial direction.

As shown in FIG. 1, the container 1 in the present embodiment is suitable for use as, for example, a portion container for storing milk or the like, or a cup container for storing jelly or the like. The contents X to be stored include a liquid such as milk or dressing, a solid having a liquid content such as jelly, or a semi-fluid such as ketchup or yogurt.
The container 1 includes a container main body 2 that stores the contents X and a lid 3.

  The container main body 2 is a bottomed cylindrical body including a cylindrical side wall portion 4 and a bottom portion 6. A flange portion 5 is provided on the side of the opening edge 2a of the container body 2 (on the upper side in the axial direction in FIG. 1). These 4-6 are integrally formed by synthetic resins, such as polyethylene, a polypropylene, a polyethylene terephthalate, for example.

The side wall 4 has a gradually increasing diameter toward the opening edge 2a.
The flange portion 5 is a flat plate projecting radially outward from the side wall portion 4, and is formed over the entire periphery of the opening edge 2 a of the container body 2.
The bottom portion 6 extends radially inward from the closed edge 2b of the side wall portion 4 and is formed around the central axis O over the entire circumference of the side wall portion 4, and the radial direction of the ground portion 7 It is comprised from the recessed part 8 which was formed inside and was dented in the container inner side (opening end 2a side) of the axial direction.

  The concave portion 8 includes a cylindrical wall portion 80 which is erected from the inner peripheral edge of the grounding portion 7 toward the inner side of the container in the axial direction and formed around the central axis O, and an end portion of the wall portion 80 on the inner side of the container. And a bottom plate portion 81 provided so as to close. That is, the inner peripheral edge of the grounding portion 7 described above is continuous with the opening edge of the concave portion 8 (the end portion of the wall portion 80 on the container outer side).

The wall portion 80 has a gradually decreasing diameter toward the inner side of the container in the axial direction.
The bottom plate portion 81 can be pulled out from the container inner side in the axial direction toward the container outer side. Specifically, the bottom plate portion 81 is a spherical dome-shaped member, and can be reversed in the axial direction with the outer peripheral edge portion 81a as a base point. That is, the bottom plate portion 81 is bulged from the axially inward side of the container as shown in FIG. 1 (a) to the axially outward side of the container as shown in FIG. 1 (b). It can be deformed. The bottom plate 81 is provided with a knob 82 that protrudes outward in the axial direction of the container. The knob 82 has a cylindrical shape extending along the axial direction, and the tip thereof has an enlarged diameter. The knob 82 is large enough to be picked by a finger. Further, the length of the knob portion 82 in the axial direction is such that the bottom plate portion 81 does not protrude outward in the axial direction from the grounding portion 7 when the bottom plate portion 81 is in the inverted state shown in FIG. That is, the tip of the knob 82 is positioned on the inner side of the container in the axial direction from the grounding portion 7.

  On the other hand, the lid 3 is a sheet-like member for sealing the opening end surface 2 c of the container body 2, and its outer peripheral edge is detachably attached to the upper surface of the flange portion 5. As the lid 3, a known sheet-like lid can be used, for example, a synthetic resin film alone or a laminated film obtained by laminating a synthetic resin film and other films. .

In the container 1 having the above-described configuration, the contents X are stored in the container 1 by the following method.
First, the high-temperature content X that has been subjected to heat sterilization is filled into the container body 2, and immediately thereafter, the lid 3 is attached to the flange portion 5 to seal the open end surface 2 c of the container body 2. At this time, the bottom plate portion 81 is in a state of being recessed toward the inner side of the container in the axial direction as shown in FIG. Further, the content X is not filled in the container body 2 to the full extent, but the content X is filled to a position slightly below the opening end surface 2 c of the container body 2. Thereby, a gas layer A is formed between the liquid level L of the contents X in the container body 2 and the back surface of the lid 3.
Next, the sealed container 1 is cooled by natural cooling or a cooling device. At this time, when the gas layer A in the container 1 is cooled, the inside of the container 1 is depressurized and becomes lower than the atmospheric pressure.

In the container 1 having the above-described configuration, when the consumer consumes the contents X in the container 1, the container 1 is opened in the following manner.
First, as shown in FIG. 1B, the knob 82 is picked with a finger and pulled outward in the axial direction of the container, and the bottom plate 81 is inverted in the axial direction and pulled out in the axial direction of the outer side of the container. Thereby, the internal volume in the container main body 2 increases, the liquid level L of the contents X in the container main body 2 falls, and the said liquid level L moves away from the opening end surface 2c of the container main body 2.
Next, a portion of the outer edge of the lid 3 is picked with a finger, the lid 3 is lifted, and the lid 3 is peeled off from the container body 2. Thereby, a part or all of the opening end surface 2c of the container body 2 is opened. And the content X in the container main body 2 is taken out from the opened location, and the content X is consumed.
Note that the consumer does not have to perform the above-described operation of pulling out the bottom plate portion 81. For example, it may be performed by the manufacturer in advance before shipping the product, or may be performed by an intermediary such as a retailer.

According to the container 1 having the above-described configuration, by pulling the knob 82 and pulling out the bottom plate 81 from the container inner side toward the container outer side in the axial direction, the liquid of the content X in the container main body 2 can be obtained. Since the surface L is lowered, the content X can be prevented from popping out at the time of opening.
Moreover, since the said baseplate part 81 is provided in the recessed part 8 provided in the bottom part 6 of the container main body 2, it is less likely that the baseplate part 81 is pulled out by the external force unexpectedly, and is pulled back. The inconvenience that the internal volume is unexpectedly increased or decreased can be suppressed. For example, when the bottom plate portion 81 that has been pulled out is pulled back by an unexpected external force, it is not possible to prevent the contents X from popping out at the time of opening. However, according to the container 1 described above, the bottom plate portion 81 is caused by an unexpected external force. Since it is rarely pulled back, popping out of the contents X at the time of opening can be more reliably suppressed.
Further, since the bottom plate portion 81 is provided with the knob portion 82, even the consumer can easily pull out the bottom plate portion 81.

  Further, according to the container 1 having the above-described configuration, the bottom plate portion 81 can be reversed in the axial direction with the outer peripheral edge portion 81a as a base point, and thus the bottom plate portion 81 that can be pulled out in the axial direction has a simple configuration. It has been realized. Thereby, the container main body 2 can be manufactured easily and production cost can be reduced.

  Further, according to the container 1 having the above-described configuration, since the tip of the knob portion 82 is disposed on the inner side of the container in the axial direction from the grounding portion 7 with the bottom plate portion 81 pulled out, the bottom plate portion 81 is Even in the pulled-out state, the grounding portion 7 can be grounded in a stable state. Thereby, the container 1 can be displayed in a shop front in the state which pulled out the baseplate part 81 previously.

As mentioned above, although embodiment of the container concerning this invention was described, this invention is not limited to above-described embodiment, In the range which does not deviate from the meaning, it can change suitably.
For example, in the above-described embodiment, by reversing the bottom plate portion 81 with the outer peripheral edge portion 81a of the bottom plate portion 81 as a base point, the bottom plate portion 81 is pulled out from the container inner side in the axial direction to the container outer side. However, in the present invention, the bottom plate portion 81 may be pulled out other than the above-described inversion structure. For example, as shown in FIG. 2, it is possible to draw out the bottom plate portion 181 from the inner side of the container in the axial direction to the outer side of the container by expanding and contracting the bellows wall 180 supporting the bottom plate portion 181 in the axial direction. is there. More specifically, the wall portion forming the recess 8 is a bellows wall 180, and the bottom plate portion 181 is provided at the end of the bellows wall 180 on the inner side of the container. The bellows wall 180 has a structure that can be expanded and contracted in the axial direction. As shown in FIG. 2B, the bellows wall 180 is pulled to the outside of the container in the axial direction by pulling a knob 82 provided on the bottom plate 181. The wall 180 is contracted and the bottom plate portion 181 is pulled out.
In addition, it is also possible to combine the above-described bellows wall 180 and the bottom plate portion 81 having the inverted structure described in the embodiment. Thereby, the drawing-out amount of the baseplate part 81 becomes large, the liquid level L falls further, and the content X becomes difficult to jump out more at the time of opening.

  In the above-described embodiment, the tip of the knob 82 is disposed on the inner side of the container in the axial direction from the grounding part 7 with the bottom plate 81 being pulled out. It is also possible to increase the overall length and to make the tip of the knob protrude from the grounding portion 7 outward in the axial direction of the container. Thereby, even in the case of a small container such as a potion container or the like, the picking part can be easily picked with a finger.

  Further, in the above-described embodiment, the bottom plate portion 81 has a dome shape, but the shape of the bottom plate portion of the present invention is not limited to this, and the shape, size, and the like can be changed as appropriate. For example, as shown in FIG. 2, a flat plate-shaped bottom plate portion 181 may be used.

  In the above-described embodiment, the wall portion 80 is formed in the recess 8 of the bottom portion 6. However, in the present invention, the wall portion 80 is not provided, and the outer peripheral edge portion 81 a of the bottom plate portion 81 is within the grounding portion 7. It is also possible to adopt a configuration connected to the peripheral edge.

  Further, in the above-described embodiment, the knob portion 82 has a cylindrical shape with an enlarged tip, but the shape of the knob portion of the present invention is not limited to this, and the shape, size, etc. thereof are as follows. It can be changed as appropriate. For example, it may be a plate-shaped knob or a semi-ring-shaped knob.

  In addition, in the range which does not deviate from the main point of this invention, it is possible to replace suitably the component in above-mentioned embodiment with a well-known component, and you may combine the above-mentioned modification suitably.

It is a half sectional view of a container for explaining an embodiment of the invention. It is sectional drawing of the container for demonstrating other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container 2 Container main body 2a Opening edge 2c Opening end surface 3 Cover body 5 Flange part 6 Bottom part 8 Recessed part 81,181 Bottom plate part 82 Knob part X Contents

Claims (3)

A flange portion is provided at the opening edge of the bottomed cylindrical container main body containing the contents, and a sheet-like lid is detachably attached to the flange portion so that the opening end surface of the container main body is sealed. In the container,
The bottom of the container body is formed with a recess recessed toward the inner side of the container in the axial direction,
The recess is provided with a bottom plate portion that can be drawn from the inner side of the container in the axial direction toward the outer side of the container,
The bottom plate is provided with a knob that protrudes outward in the axial direction of the container. The container of claim 1,
The said baseplate part is pulled out toward the container outer side from the container inner side of an axial direction by inverting in the axial direction on the basis of the outer periphery. The container according to claim 1 or 2,
The bottom is provided with a grounding portion that extends in the container radial direction and extends to the opening edge of the recess,
A container characterized in that, with the bottom plate part being pulled out, the tip of the knob is disposed on the inner side of the container in the axial direction from the grounding part.

Images