JP4756480B2 - Container with lid - Google Patents

Description

  The present invention relates to a container with a lid.

  Conventionally, a warming container body having an upper opening as this type, a sugar beet container with a lid, a rice container with a lid, and a soup container with a lid, which is detachably attached to the warming container body in the upper, middle, and lower stages A portable launcher with an outer lid that is detachably provided in the upper opening, the lid of the rice container is a heat insulating lid, and the inside is filled with foaming material to improve heat retention (For example, Patent Document 1).

In addition, it is also known that a decompression prevention valve is provided at the center of the upper part of the lid so that when the inside of the container is depressurized, the outer periphery of the valve is deformed and air is introduced to facilitate opening. Yes.
JP-A-9-215515

  The heat insulating cover is integrated and sealed by welding the outer cover part and the inner cover part. For example, if this is left in a high temperature for disinfection, the air inside expands and the cover deforms. End up. In addition, when the lid has a relatively large diameter, there is a problem that it is difficult to open the plug due to tensile resistance when the inside is in a reduced pressure state.

  In order to solve this problem, some lids are provided with a pressure reducing prevention valve. However, due to the shape, dirt tends to accumulate. And when dirt accumulates, it is easy to be decompressed, and when opening the stopper, there is a problem that it is easy to receive resistance and difficult to open.

  The problem to be solved is to provide a lidded container that can be easily removed even when the inside of the container is depressurized and that can be easily cleaned.

The invention according to claim 1 comprises a heat insulating container body which is composed of an outer cylinder and an inner cylinder and insulates between them and forms an upper opening, and an elastic stopper which closes the upper opening and is detachably provided in the upper opening. An inner lid provided with a water packing, and a lidded container provided with an outer lid that is detachably provided on the heat retaining container main body and covers the outer side of the inner lid and can be pressed against the inner lid. The lid is provided with an air passage communicating between the inside and the outside, and the outer lid is provided with an air passage closing packing capable of closing the air passage.

A second aspect of the present invention, the air passage closure seal is a container with a lid according to claim 1, characterized by being removably attached to the outer cover inside.

According to the invention of claim 1 , since the heat insulating lid that closes the upper opening of the heat insulating container main body is divided into the inner lid provided with the air passage and the outer lid provided with the closing member, it is left in a high temperature atmosphere. However, each of them is not deformed, and the pressure reducing means can be simplified to facilitate cleaning.

According to the second aspect of the present invention, the air path closing packing can be removed and cleaned alone.

  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 3 show an embodiment in which a lid 3 is detachably provided in an upper opening 2 of a heat insulating container body 1 as a container. The heat insulating container body 1 is provided with a stainless steel bottomed inner cylinder 5 on the inner side of a stainless steel bottomed outer cylinder 4 and the upper edge of the outer cylinder 4 and the inner cylinder 5 are joined to each other at the top of the wide mouth. An opening 2 is formed. And between the outer cylinder 4 and the inner cylinder 5 is made into the vacuum layer 6 which is a heat insulation layer, and the heat insulation double container is formed. Further, a projection 7 is provided in a stepped manner inwardly slightly below the upper opening 2 in the inner cylinder 5.

  The lid 3 includes an inner lid 8 having a circular resin plane, and an outer lid 10 having a circular resin plane covering the inner lid 8 via an air heat insulating layer 9 that is a heat insulating layer for heat insulation. Prepare. The inner lid 8 covers the inside of the upper edge of the inner cylinder 5, and the inner bottom plate portion is provided below the inner circumferential plate portion 12 that is loosely fitted to the inner circumferential surface 11 of the upper opening 2 (inner circumferential surface 11 of the inner cylinder 5). 13 and an O-ring 15 made of, for example, silicone rubber, which is a packing-like elastic liquid-stopping member made of an elastic material such as rubber or elastomer, is attached to the lower part of the inner peripheral plate portion 12 via a stepped portion 14. The inner lid 8 is dropped into the upper opening 2 from above, and the O-ring 15 is locked to the projection 7 so that it can be closed. In addition, an air hole 17 that is an air passage is provided in the center of the top portion 16 that faces upward in the center of the inner bottom plate portion 13 and has an upper end that is horizontally horizontal. The air hole 17 is formed by a small diameter hole having a diameter A of 3 mm or less, preferably 2 mm or less, penetrating in the vertical direction. The diameter A of the air hole 17 is smaller than the diameter B of the inner lid 8. (A <B). In the figure, reference numeral 18 denotes an upper end of the inner peripheral plate portion 12, which forms a small flange portion slightly protruding outward.

The outer lid 10 covers the upper portion of the inner lid 8 and is attached to the upper edge of the outer peripheral plate portion 20 that is screwed onto the outer peripheral surface 19 of the upper opening 2 (the outer peripheral surface 19 of the outer cylinder 4). A top plate portion 21 that covers the entire opening edge of the portion 12 is provided integrally. Therefore, a male screw portion 22 is formed on the outer peripheral surface 19 of the upper opening 2, and a female screw portion 23 is formed on the outer peripheral plate portion 20. Further, an air hole closing packing 25 which is an air path closing packing is detachably provided at the center of the lower surface of the top plate portion 21 through the packing holding member 24 so as to face the air hole 17. The air hole closing packing 25 is made of an elastic material such as rubber or elastomer.

  The packing holding member 24 is formed by integrally projecting a first protrusion 27 downwardly on the inner side of a first ring-shaped part 26 having a circular ring shape, and the first protrusion 27 is a hollow thin-walled shape. The first lower end 28 protrudes in a semispherical shape and can be fitted into a second protrusion 29 described later. The first flange portion 26 is coaxially fixed to the center of the lower surface of the top plate portion 21.

  The air hole closing packing 25 is formed by integrally projecting a second projection 29 downwardly on the inside of the second flange 30 having a circular ring shape on the plane, and the second projection 29 is also hollow. The second lower end 31 protrudes in a semispherical shape, and the upper end opens upward from the first lower end 28 side so that the first protrusion 27 can be inserted. is doing.

  The air hole closing packing 25 is provided so as to be detachable in an overlapping manner with respect to the packing holding member 24 fixed to the center of the lower surface of the top plate portion 21. For this reason, the outer diameter C of the first flange portion 26 is provided. Further, the outer diameter D of the second flange 30 is formed larger (C <D), and the outer diameter E of the first protrusion 27 is substantially the same as the inner diameter F of the second protrusion 29 (E≈F In addition, as a stopper for preventing the air hole closing packing 25 from coming off from the packing holding member 24, the outer peripheral surface of the first protrusion 27 and the inner peripheral surface of the second protrusion 29 are engaged with the engaging portion 32 and the engaging portion 32. A locking receiving portion 33 to be stopped is formed. In the embodiment, a convex portion is provided on the outer peripheral surface of the first protrusion 27, and a concave portion capable of locking the convex portion is formed on the inner peripheral surface of the second protrusion 29. Further, the lower surface of the outer lid 10 is formed so that a cavity 34 can be formed between the first lower end 28 and the second lower end 31 when the air hole closing packing 25 is attached to the packing holding member 24 in an overlapping manner. The length H from the first collar 26 to the inside of the first lower end 28 is longer than the length H from the first collar 26 to the inside of the first lower end 28. Is formed large (G <H). In addition, when the inner lid 8 and the outer lid 10 are attached to the heat insulating container main body 1, the length I up to the top portion 16 when the first collar portion 26 which is the lower surface of the outer lid 10 is used as a reference is shown in FIG. As indicated by the alternate long and short dash line, the length J to the outside of the second lower end 31 in the free state is slightly larger (I <J). This is because when the second lower end 31 closes the air hole 17, it can be elastically landed on the top 16 as shown in FIG. 1.

  In the figure, reference numeral 35 denotes a bottom member of the heat insulation container main body 1 which is attached to the bottom of the outer cylinder 4.

  Next, the operation of the above configuration will be described. With the air hole closing packing 25 fitted in advance to the packing holding member 24 and attached to the outer lid 10, the heat insulating container body 1, the inner lid 8, and the outer lid 10 are sterilized and stored (not shown). Store in a high temperature atmosphere and disinfect.

  Then, the heat insulating container main body 1, the inner lid 8 and the outer lid 10 after the disinfection are taken out, and after containing an object (not shown) such as soup and miso soup in the inner cylinder 5, the inner lid 8 is moved upward. Fit into the opening 2. Next, the female screw portion 23 is screwed into the male screw portion 22 and tightened so as to cover the outer lid 10 from above the inner lid 8. By this tightening, the outer lid 10 sequentially moves downward, so that the air hole closing packing 25 closes the air hole 17 provided in the central portion of the inner lid 8. When the outer lid 10 is further tightened, the lower surface of the top plate portion 21 of the outer lid 10 comes into contact with the upper edge 18 of the inner lid 8 and presses the inner lid 8 downward. By this pressing, the O-ring 15 attached to the inner lid 8 comes into contact with the step portion 14 provided in the upper opening 2 so that the portion can be sealed and water can be stopped. Note that the air hole closing packing 25 is flexible enough to achieve water stoppage of the O-ring 15 so that the O-ring 15 is not insufficiently pressed when the outer lid 10 is tightened. Therefore, at the time of such plugging, the air hole closing packing 25 is not attached to the inner lid 8 side, so that the object to be contained does not touch the air hole closing packing 25 and is not easily contaminated.

  On the other hand, when opening the cap, the air hole closing packing 25 inside the outer lid 10 is first separated from the inner lid 8 by opening the outer lid 10, and the sealing of the air hole 17 of the inner lid 8 is released. Thereby, even if the inside of the heat insulation container main body 1 is in a pressure-reduced state, the inside returns to the normal pressure state by introducing outside air into the inside through the air holes 17. Accordingly, since the outer lid 10 does not directly receive the pulling resistance to the inside due to the reduced pressure, the outer lid 10 can be opened smoothly, and the inner lid 8 is also released from the reduced pressure state, so that it can be easily received without receiving the inner pulling force. Can be lifted.

  As described above, in the above-described embodiment, the heat insulating container main body 1 which is composed of the outer cylinder 4 and the inner cylinder 5 and insulates between them and forms the upper opening 2 is closed, and the upper opening 2 is closed and the upper opening 2 is closed. An inner lid 8 provided with an detachable O-ring 15, and an outer lid 10 that is detachably provided on the heat insulating container main body 1 to cover the outer side of the inner lid 8 and can be pressed against the inner lid 8. The inner lid 8 is provided with an air hole 17 that communicates the inside and the outside, and the outer lid 10 is provided with an air hole closing packing 25 that opposes the air hole 17 so as to close the air hole 17. The lid 8 and the outer lid 10 can be divided, and even if left in a high-temperature atmosphere such as a disinfecting storage, it does not expand and deform like an integrated lid. Further, since the air hole 17 is opened and closed by the air hole closing packing 25, the packing is larger and simpler than the conventional pressure reducing prevention valve, so that it can be easily attached and detached and can be easily cleaned. In addition, since the inner lid 8 is not provided with a pressure reduction prevention valve, it can be kept clean without directly touching the object. Moreover, the resistance at the time of opening is eliminated due to the reduced pressure, and the opening can be easily performed.

  Further, since the air hole closing packing 25 is detachably attached to the inner side of the outer lid 10, the removed air hole closing packing 25 can be cleaned independently, and dirt can be removed up to the inside. .

  Further, since the diameter A of the air hole 17 is smaller than the diameter B of the inner lid 8, the outer lid 10 is not easily subjected to the tensile resistance due to the reduced pressure and becomes easy to handle.

  As described above, the lidded container according to the present invention can be applied to various uses.

It is a longitudinal cross-sectional view which shows one Example of this invention. It is a longitudinal cross-sectional view of the decomposition | disassembly state which shows one Example of this invention. It is a front view which shows one Example of this invention.

1 Insulation container body 2 Upper opening 4 Outer cylinder 5 Inner cylinder
6 vacuum layer (heat insulation layer)
8 Inner lid
10 outer lid
15 O-ring (elastic waterproofing packings)
17 Air hole (air passage)
25 Air hole blocking packing ( Air path blocking packing )

Claims (2)

Inner lid provided with insulated container body forming the upper opening as well as thermal insulation between these two consists outer cylinder and inner cylinder, the elastic waterproofing packing detachably mounted to the upper opening as well as closing the upper opening When, in the container with a lid having a depressible outer lid to abut against the said inner lid with the detachably attached to insulated container body to cover the outside of the inner lid, communicating the inside and the outside to the inside lid An air path is provided, and an air path closing packing capable of closing the air path is provided in the outer lid. The container with a lid according to claim 1, wherein the air path closing packing is detachably attached to the inner side of the outer lid .

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