JP4974063B2 - Storage container - Google Patents

Description

  The present invention relates to a storage container for storing food or the like having a sealing member on a lid.

  Conventionally, as this kind of thing, as a suction valve for decompression opening of a synthetic resin container, there is an opening hole for decompression opening in the lid, and this is a separate umbrella-shaped valve body made of an elastic material. It was closed and manually opened and closed as needed. In addition, as a seal portion between the container and the lid, a seal member made of an elastic material that is in close contact with the opening of the synthetic resin container is mounted.

  For example, as an air regulating valve for food containers such as lunch boxes, the air regulating valve includes a food container lid having a recess having a through hole in the center and an air regulating valve mounted through the through hole. Consists of a bowl-shaped head that fits into the recess of the lid, a stem portion that forms a large gap between the through-hole of the lid, and a thin bowl-shaped valve that has a peripheral edge abutting against the back surface of the lid An air regulating valve structure is known.

  Also, as a vacuum sealed storage container for foods, it is composed of a synthetic resin container body that is heat resistant, cold resistant and flexible, and has an air vent and an umbrella shape made of rubber elastic material to close the air hole And a lid provided with a check valve, and a packing (seal member) is mounted on the periphery of the lower surface of the lid via a packing case, and the upper edge of the container body is brought into contact with the packing and sealed. Is also known.

Japanese Utility Model Publication No. 7-33871 Japanese Utility Model Publication No. 3-78780

  In the prior art, the seal member made of an elastic material and the intake valve for releasing the pressure reduction are separate parts, and it is necessary to attach the seal member and the intake valve separately. Regardless of which part you forgot to install, the contents leaked out of the container when you carried it in the container. In addition, the valve is often a small part and often lost when removed after cleaning after use.

  The problem to be solved is to provide a storage container that can prevent forgetting or losing the seal member or valve.

To achieve the above object, according to claim 1 invention comprises a container body for containing a food product, a closable lid detachably attached to the opening of the container body, the opening of the container body that is provided on the lid A storage container comprising: a seal member; and a valve that is provided on the lid and communicates with the inside and outside of the lid so that the communicating portion can be opened and closed .
The valve provided to be attached to the inner surface side of the lid by fitting the seal member to a groove portion on the outer periphery of the inner surface of the lid facing the opening of the container body and facing the opening. Is provided integrally with the seal member, and the communicating portion is configured to communicate the inside and outside of the lid with the small diameter hole portion provided inside the lid portion on the inner side of the groove portion of the lid, and the small diameter hole portion. The storage container is characterized in that the valve is attached to the inside, and a convex portion protruding outward from the valve is loosely fitted into the small-diameter hole portion and attached to the lid .

A second aspect of the present invention is the storage container according to the first aspect, wherein a locking portion for retaining the hook that can be locked to the outer surface of the lid is formed on the convex portion .

The invention according to claim 3, wherein the communicating portion includes an inner and forming the large diameter hole section, a storage container according to claim 2, characterized in that the outer formed by the small-diameter hole portion.

According to the first aspect of the invention, the inside of the container can be sealed by attaching the sealing member to the lid, and the valve can be attached at the same time by attaching the sealing member to the lid. The possibility can be reduced.

According to the invention of claim 2 , the valve and the seal member can be prevented from coming off by locking the locking portion to the outer surface of the lid when the valve is mounted on the lid.

  According to the invention of claim 3, by inserting the convex portion into the small-diameter hole portion, it can be seen that the valve, and thus the seal member, is visually attached, and forgetting to attach the seal member and the valve can be prevented.

It is sectional drawing which shows Example 1 of this invention. It is the disassembled perspective view seen from the same upper direction. It is the disassembled perspective view seen from the lower part. It is an expanded sectional view of the principal part. It is sectional drawing which shows Example 2 of this invention. It is sectional drawing which shows Example 3 of this invention. It is sectional drawing which shows Example 4 of this invention. It is the same perspective view.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention.

  1 to 4 show Example 1, and a synthetic resin container body 1 for a lunch box for containing food (not shown) such as juice or sugar beet is a cylindrical shape having a circular plane and a bottom. A synthetic resin lid 3 is detachably provided in the upper opening 2. The lid 3 has a U-shaped cross section in which the shoulder 5 is provided downward on the outer periphery of the cover plate portion 4 having a circular plane, and a female screw 6 is formed on the outer periphery of the container body 1. A male screw 7 is formed on the inner periphery of the shoulder 5, and the male screw 7 can be screwed onto the female screw 6. In the embodiment, a knob 8 protrudes upward in the center of the upper surface of the lid 3.

  Further, when the side of the container main body 1 containing the food is the inside, a seal member 9, which is also called a packing made of an elastic material, is provided along the outer periphery 4 </ b> A along the outer periphery 4 </ b> A. The seal member 9 has a circular ring shape on the plane, and a substantially inverted L-shaped cross section. The upper portion 9A with which the upper edge 2A of the upper opening 2 of the container body 1 abuts, and the lid 3 of the upper portion 9A. It consists of the lower part 9B located in the center side and provided downward. A groove 10 having a lower opening, also referred to as a seal case, is provided inside the outer periphery 4A of the cover plate 4 in a planar annular shape, and the seal member 9 is fitted into the groove 10 so that the container body 1A is in contact with the lower surface of the upper portion 9A.

  Furthermore, the communication part 11 used as the internal pressure reduction prevention hole which connects the inside and outside to the cover board part 4 is formed by the through-hole of an up-down direction. The communication portion 11 is closer to the lid center 3A than the seal member 9 in the lid plate portion 4, and is an imaginary line (radius A of the lid plate portion 4) connecting the outer periphery 4A and the lid center 3A side in the lid plate portion 4. It corresponds to the outer periphery 4A side from the half of the location. In the embodiment, the center of the communication portion 11 is disposed at a position within one third of the imaginary line connecting the outer periphery 4A and the lid center 3A side in the lid plate portion 4 on the outer periphery 4A side. The communication portion 11 is formed with a large-diameter hole portion 12 on the inner side, and a small-diameter hole portion 14 is formed outside the large-diameter hole portion 12 via a substantially horizontal step surface 13. And in site | part 10A of the groove part 10 of the vicinity of the communication part 11, it deviates to the lid | cover center 3A side so that the valve 15 mentioned later may be bypassed.

  The valve 15 provided so as to be able to open and close the communication portion 11 is a check valve type that blocks the air flow from the inside to the outside by the action of the inside pressure, and is substantially disc-shaped inside the lid plate portion 4. And the shape thereof is an inverted umbrella shape, that is, a reverse truncated cone shape, the center of which is coaxially arranged at the center of the communication portion 11, and the peripheral edge portion 16 is the inner surface of the lid plate portion 4. That is, it is in contact with the stepped surface 13 so as to be in close contact. A convex portion 17 is provided integrally with the valve 15 upward from the center of the valve 15, and the convex portion 17 is inserted into the small-diameter hole portion 14. A small protrusion 18 that can be locked to the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface.

  The parts in which the seal member 9 and the valve 15 are integrally provided are integrally formed of an elastomer having rubber-like elasticity at room temperature, such as natural rubber, various synthetic rubbers, recycled rubber, and acrylic resin.

  As shown in FIG. 4, the small-diameter hole portion 14 has a flat circular shape, and the convex portion 17 has an axial shape with a circular plane, and the diameter B of the convex portion 17 is smaller than the diameter C of the small-diameter hole portion 14. (B <C), the convex portion 17 is loosely fitted in the small diameter hole portion 14 so as to have a gap. In this loose fitting state, the center of the convex portion 17 is deviated toward the outer periphery 4A side with respect to the center of the small diameter hole portion 14, so that the convex portion 17 is in contact with the outer periphery 4A side of the small diameter hole portion 14 and On the opposite side to 4A, that is, on the lid center 3A side, a ventilation gap D (= CB) is formed between them so as to penetrate vertically. Further, when the upper surface of the valve 15 is used as a reference, the first height E of the convex portion 17 is formed to be larger than the second height F of the small diameter hole portion 14 (E> F), or substantially They are formed at the same height (E = F), and when the valve 15 is in contact with the inside of the cover plate part 4, the upper end of the convex part 17 protrudes slightly above the upper surface of the cover plate part 4 or is the same surface. It has become. In addition, the third height G of the lower edge of the small protrusion 18 is approximately the same as or slightly larger than the second height F of the small-diameter hole portion 14 when the upper surface of the valve 15 is used as a reference. When the convex portion 17 is inserted into the small-diameter hole portion 14, it can be locked to the upper surface of the lid plate portion 4. The diameter H of the outer periphery of the small protrusion 18 is smaller than or substantially the same as the diameter C of the small-diameter hole portion 14 so that the small protrusion 18 can be taken in and out of the small-diameter hole portion 14 without being caught. When inserted, the small protrusion 18 can be locked to the upper surface of the cover plate portion 4.

  The seal member 9 and the valve 15 are integrated with each other through a connection portion 19. In this connection portion 19, the upper surface of the upper portion 9 </ b> A and the upper surface of the valve 15 are provided in a planar shape with substantially the same height, and the connection portion 19 extends from the valve 15 to the center of the valve (in the embodiment, It is provided so as to extend from the convex portion 17) to the closest portion of the seal member 9, and the width J of the connecting portion 19 has the same length as the diameter of the valve 15, as shown in FIG. For this reason, a part of the connection part 19 side of the valve 15 serves as the valve 15 and the connection part 19 and has such a width J so that the seal member 9 and the valve 15 are handled as a single item. In addition, the valve 15 has such a strength that it can be held so as to be always upward. A notch portion 20 is provided at a corresponding portion of the lower portion 9B disposed below the valve 15 so that the lower surface of the valve 15 can be easily pushed from below with a finger.

  Next, the operation of the above configuration will be described. The seal member 9 integrally provided with the valve 15 is attached to the lid 3 by inserting the convex portion 17 into the small-diameter hole portion 14 from below to form the peripheral edge portion 16 of the valve 15 as a part of the lid plate portion 4. Abuts against the stepped surface 13. At this time, the outer periphery 4 </ b> A side of the convex portion 17 is press-fitted to the inner surface of the small-diameter hole portion 14 so as to prevent the convex portion 17 from coming off from the small-diameter hole portion 14. Further, the small protrusion 18 is engaged with the upper surface, which is the outer surface of the lid plate portion 4, so that the small protrusion 18 can prevent the protrusion 17 and thus the seal member 9 from coming off. Then, the seal member 9 is fitted and attached to the groove portion 10 so that the upper portion 9A is in contact with the inside of the lid plate portion 4. At this time, when the communication part 11 is viewed from above, the convex part 17 appears, so that the mounting of the valve 15 can be visually confirmed. If the valve 15 is not visible, it can be confirmed that the valve 15 is not correctly mounted.

  In this manner, with the seal member 9 integrally provided with the valve 15 attached to the lid 3, the container main body 1 containing the warm food is closed by being screwed by the female screw 6 and the male screw 7. At this time, the lid 3 is fitted into the container body 1 so as to cover the opening, and the inside is sealed and stored. In this case, the upper edge 2 </ b> A is brought into contact with the seal member 9, and the sealability between the opening and the groove 10 can be improved by the seal member 9. Further, in the communication part 11, the peripheral part 16 of the umbrella-shaped valve 15 is in close contact with the stepped part surface 13, so that a sealed state is ensured.

  When the food is cooled during such storage, the inside of the container is depressurized, but when the inside is in a depressurized state in this way, the peripheral portion 16 of the valve 15 is sucked inward, so that the peripheral portion 16 And a small gap is formed between the bottom surface of the lid plate portion 4 and the sealed state is released. As a result, the outside air creates a gap between the communication portion and the gap between the valve 15 and the bottom surface of the lid plate portion 4. The inside of the container is always at atmospheric pressure. For this reason, it is not difficult to open the lid 3 by releasing the screwed connection between the female screw 6 and the male screw 7. When the inside is at atmospheric pressure, the peripheral portion 16 is brought into close contact with the lower surface of the cover plate portion 4 again due to the elastic force of the valve 15, and the inside can be sealed.

  When the seal member 9 becomes dirty, the seal member 9 is removed from the groove portion 10 together with the valve 15 and cleaned. At this time, since the valve 15 is provided integrally with the seal member 9, the valve 15 can be prevented from being lost.

  As described above, in the above-described embodiment, the valve 15 is integrally provided on the seal member 9, so that the intake valve 15 can be mounted simultaneously by mounting the seal member 9. Since the seal member 9 has an umbrella-shaped valve 15 that covers the intake communication portion 11 of the lid 3 so as to be openable and closable, the seal member 9 for the container body 1 and the intake valve 15 are constituted by the same parts. Therefore, the intake valve 15 can be attached at the same time as the seal member 9 is attached. Furthermore, since the seal member 9 and the intake valve 15 are provided, the contents do not leak when one of the containers is forgotten to be attached and the food as the contents is put into the container body 1 and carried. Further, since the intake valve 15 which is a small part is integrated with the seal member 9, it is difficult to be lost when it is removed during cleaning or the like.

  The communication part 11 is formed with a large-diameter hole part 12 on the inner side and a small-diameter hole part 14 on the outer side. By inserting the projecting convex portion 17 into the surface, it can be seen that the seal member 9 is visually attached, and forgetting to attach the seal member 9 and the valve 15 can be prevented.

  Further, the sealing member 9 is fitted into the groove portion 10 to give a restraining force to the portion, and the convex portion 17 is loosely fitted to the small diameter hole portion 14 to give the portion a restraining force. The seal member 9 is less likely to drop off.

  In addition, since the protrusion 17 is provided with a small protrusion 18 for preventing the removal, the protrusion 17 is locked to the upper surface which is the outer surface of the cover plate portion 4 to prevent the sealing member 9 as well as the valve 15 from coming off. be able to.

  Further, since the seal member 9 and the valve 15 are integrally formed of a rubber-like elastic material, the sealing performance and the sealing performance can be improved, and the production can be performed by a mold.

  Other embodiments will be described below. In addition, the same code | symbol is attached | subjected to the same part as the said Example, and the detailed description is abbreviate | omitted.

  In Example 2 shown in FIG. 5, the cross-section of the seal member 9 ′ is formed in a U shape with a lid inner surface outer peripheral groove portion 21 that opens sideways and opens outward. The upper edge 2A of the container body 1 is brought into contact with the sealing member 9 'so that it can be sealed.

  Thus, by using the U-shaped sealing member 9 ′, the elasticity of the sealing member 9 ′ can be improved and the sealing performance can be improved.

  In Example 3 shown in FIG. 6, the cross-section of the seal member 9 ″ has a hollow shape with a hollow portion 22 provided therein, and when the upper edge 2A of the container body 1 contacts the lower portion, the hollow portion 22 A high elastic force can be achieved.

  Thus, by using the sealing member 9 ″ having a hollow cross section, the sealing performance can be improved by bringing the upper edge 2A into contact with the sealing member 9 having high elasticity.

  In the fourth embodiment shown in FIGS. 7 and 8, the reverse umbrella-shaped portion of the valve 15 is made solid, and can be brought into close contact with the inner surface of the lid plate portion 4, that is, the stepped portion surface 13. .

  In this manner, the upper surface 15A of the reverse umbrella-shaped portion of the valve 15 is recessed around the convex portion 17 in the first embodiment, whereas in the fourth embodiment, it is flat and solid so that the sealing performance is improved. Can be improved.

  As described above, the storage container according to the present invention can be applied to various uses. For example, the cross-section of the seal member may be formed in a U-shape in which a lid inner surface outer peripheral groove portion that opens downward is formed, and the upper edge of the container may be inserted into the lid inner surface outer peripheral groove portion.

3 Lid 9 9 ′ 9 ″ Seal member
10 Groove
11 Communication part
12 Large diameter hole
13 Step surface (inner surface of lid plate 4)
14 Small diameter hole
15 valves
17 Convex
18 Locking part
21 Inner groove on inner surface of lid
22 Hollow part

Claims (3)

A container body for containing a food product, a closable lid detachably attached to the opening of the container body, and the seal member between the opening of the container body that is provided on the lid, communicating the inside and the outside of the lid provided on said lid A storage container provided with a valve that is attached to the communicating part so that the communicating part can be opened and closed ,
The valve provided to be attached to the inner surface side of the lid by fitting the seal member to a groove portion on the outer periphery of the inner surface of the lid facing the opening of the container body and facing the opening. Is provided integrally with the seal member, and the communicating portion is configured to communicate the inside and outside of the lid with the small diameter hole portion provided inside the lid portion on the inner side of the groove portion of the lid, and the small diameter hole portion. A storage container characterized in that the valve is attached to the inside, and a convex portion protruding outward from the valve is loosely fitted into the small-diameter hole and attached to the lid . The storage container according to claim 1, wherein a locking portion for retaining the stopper that can be locked to the outer surface of the lid is formed on the convex portion . The communication unit, the inner and forming the large diameter hole section, storage container according to claim 2, characterized in that the outer formed by the small-diameter hole portion.

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