JP6635325B1 - Sealed container - Google Patents

Abstract

An object of the present invention is to provide a hermetically sealed container capable of improving hermeticity and maintaining hermeticity. When a fixing screw is tightened, a lower end surface of the skirt portion of the lid is inclined obliquely upward from an upper surface of the contact portion of the container body toward the inside. The upper surface 25a, which is the inclined surface of the contact portion 25 of the container body 20, receives an obliquely downward force F2 directed outward from the lower end surface 13a, which is the inclined surface of the skirt portion 13 of the lid 10. Since the force F1 includes an inward component, the skirt portion 13 receives an inward force and is elastically deformed inward, and the force F2 includes an outward component. The upper portion of the provided side wall portion 22 receives an external force and is elastically deformed outward. The lid 10 is fixed to the container body 20 in a state where the flange-shaped protrusion 24 provided on the upper outer surface 22a of the side wall portion 22 is pressed against the inner surface 13b of the skirt portion 13 and elastically deformed and adhered thereto. [Selection diagram] FIG.

Description

  The present invention relates to a hermetically sealed container that accommodates contained items in a sealed state.

  For example, a sealed container may be used to store articles such as semiconductor components and food. By housing the contents in a sealed container, if the sealing property is sufficient, a waterproof and dustproof effect can be obtained.

  As an example of a sealed container, an annular packing material made of a soft material having a flange portion provided on the outer peripheral surface is fixed to the lower surface of the lid, and the packing material is fitted into the opening of the container body to cover the lid. Patent Literature 1 discloses a sealed container in which is mounted on a container body. When the lid is attached to the container main body, the flange provided around the packing material is in close contact with the inner wall of the opening of the container main body, thereby achieving a sealed state.

Japanese Utility Model Publication No. 02-135463

  However, the above-described sealed container has a problem that it is difficult to maintain the close contact between the flange portion and the inner wall of the opening of the container body, and it is not possible to obtain a sufficient sealing property. Further, in the above-mentioned sealed container, there is a problem that the sealing property is deteriorated due to aging deterioration because a rubber material is used for the packing material.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sealed container that can improve the sealing property and maintain the sealing property.

In order to achieve the above object, a sealed container according to a first aspect of the present invention,
A sealed container comprising a lid and a container body to which the lid is attached and the opening is closed, wherein the lid is fixed to the container body by screws,
The lid includes a top plate portion, a side wall portion hanging down from a peripheral edge of the top plate portion, and an inclined surface that is provided below the outside of the side wall portion and whose lower end surface is inclined upward toward the outside. With a certain skirt part,
The container body, a bottom plate portion, a side wall portion erected on the peripheral edge of the bottom plate portion, a flange-shaped protrusion formed around the outer surface of the side wall portion and pressed against the inner surface of the skirt portion, An inclined surface which is provided below the projecting portion and whose upper surface is inclined upward toward the outside, and has a flange-shaped contact portion with which the lower end surface of the skirt portion is in contact with the upper surface; It is characterized by the following.

  A flange-shaped projection may be provided around the inner surface of the skirt portion and pressed against the outer surface of the side wall of the container body.

  A female screw portion is formed on the inner peripheral surface, and a screw screw portion to which the screw is screwed to the female screw portion is provided vertically on the lower surface of the top plate portion or upright on the upper surface of the bottom plate portion. You may.

  The lid and the container body may be made of a synthetic resin.

  A plurality of projecting portions of the container body may be provided.

  ADVANTAGE OF THE INVENTION According to this invention, the sealed container which can improve a sealing property and can maintain a sealing property can be provided.

(A) is a top view which shows the structure of the sealed container which concerns on 1st Embodiment of this invention, (B) is AA arrow sectional drawing of (A), (C) is this invention. It is a bottom view showing the composition of the sealed container concerning a 1st embodiment. (A) is a partially omitted sectional view showing a state before fixing the lid of the sealed container according to the first embodiment of the present invention to the container main body, and (B) is a BB of FIG. 1 (A). It is arrow sectional drawing. (A) is a partially omitted cross-sectional view showing a state before fixing the lid of the sealed container according to the second embodiment of the present invention to the container main body, and (B) is a second embodiment of the present invention. It is a partially-omitted cross-sectional view showing a state where the lid of such a sealed container is fixed to the container body. (A) is a partially omitted sectional view showing a state before fixing the lid of the sealed container according to the third embodiment of the present invention to the container main body, and (B) is a third embodiment of the present invention. It is a partially-omitted cross-sectional view showing a state where the lid of such a sealed container is fixed to the container body.

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

(First embodiment)
The sealed container according to the first embodiment will be described with reference to FIGS. In FIG. 1 (B), the contents to be stored in the sealed container 1 are omitted. The sealed container 1 includes a lid 10 and a container body 20 to which the lid 10 is attached. The lid 10 is fixed to the container body 20 by fixing screws 30. The lid 10 and the container body 20 are formed of a synthetic resin such as a polycarbonate resin and an ABS resin (acrylonitrile-butadiene-styrene copolymer resin).

  As shown in FIG. 1A, the lid 10 has a substantially rectangular shape with rounded corners in plan view. The lid 10 includes a top plate portion 11, a side wall portion 12 hanging down from the periphery of the top plate portion 11, a skirt portion 13 provided below the outside of the side wall portion 12 continuously to the side wall portion 12, A screw threaded portion 14 is provided at four corners on the lower surface of the top plate portion 11 and a rib 15 for preventing the cover 10 from warping.

  The lower end surface 13a of the skirt portion 13 is formed as an inclined surface which is inclined upward and outward. The lower end surface 13a of the skirt portion 13 is in contact with an upper surface 25a formed on an inclined surface of a contact portion 25 of the container body 20 described later. A fixing screw 30 is screwed into the screw screw portion 14. The screw threaded portion 14 is cylindrical, and has a female threaded portion 14a formed on the inner peripheral surface.

  As shown in FIG. 1 (C), the container body 20 has a substantially rectangular shape with rounded corners in plan view, a bottom plate 21, and a side wall 22 erected on the periphery of the bottom plate 21. , An opening 23, a plurality of flange-shaped protrusions 24 provided above the outer surface 22 a of the side wall 22, and a lower end surface of the skirt portion 13 of the lid 10, which is provided below the protrusions 24. It has a flange-shaped abutting portion 25 to which a 13 a is abutted, and a screw head insertion concave portion 26 provided at each of the four corners of the bottom plate portion 21 and into which the head of the fixing screw 30 is inserted.

  The flange-shaped protruding portion 24 keeps the hermetically sealed state of the sealed container 1 by being in close contact with the inner surface 13 b of the skirt portion 13 of the lid 10. The contact portion 25 is formed in a tongue shape in cross section, and the upper surface 25a is inclined upward and outward so that the lower end surface 13a formed on the inclined surface of the skirt portion 13 of the lid 10 is contacted. Formed on the surface. The screw head insertion recess 26 is formed in the bottom plate portion 21 so as to be recessed upward toward the lid 10, and a through hole into which the male screw portion of the fixing screw 30 is inserted is formed at the bottom of the screw head insertion recess 26. 26a are formed.

  In order to attach the lid 10 to the container main body 20 and fix the lid 10 to the container main body 20, first, a container (not shown) is stored in the container main body 10, and then the lower end surface which is the inclined surface of the skirt portion 13 of the lid 10. 13 a is brought into contact with an upper surface 25 a which is an inclined surface of the contact portion 25 of the container body 20, and the opening 23 of the container body 20 is closed with the lid 10.

  Next, the fixing screw 30 is inserted from the screw head insertion concave portion 26 and screwed into the female screw portion 14 a of the screw screw portion 14. By tightening the fixing screw 30, as shown in FIG. 2 (B), the lower end surface 13a which is the inclined surface of the skirt portion 13 of the lid 10 becomes the upper surface 25a which is the inclined surface of the contact portion 25 of the container body 20. The upper surface 25a, which is the inclined surface of the contact portion 25 of the container body 20, receives the obliquely upward force F1 inward from the container body 20, and the upper surface 25a, which is the inclined surface of the skirt portion 13 of the lid 10, reverses the force F1. It receives a diagonally downward force F2 directed outwards of the same magnitude. Since the force F1 includes an inward component, the skirt portion 13 receives an inward force and is elastically deformed inward, and the force F2 includes an outward component. The upper portion of the provided side wall portion 22 receives an external force and elastically deforms outward. As a result, the lid 10 is fixed to the container body 20 in a state where the flange-shaped protrusion 24 provided on the upper outer surface 22a of the side wall portion 22 is pressed against the inner surface 13b of the skirt portion 13 and elastically deformed and adhered thereto. . By releasing the screw between the fixing screw 30 and the female screw portion 14a of the screw screw portion 14, the lid 10 can be easily removed from the container body 20.

  As described above, in the sealed container of the present embodiment, the lower end surface 13a of the skirt portion 13 and the upper surface 25a of the contact portion 25 of the container body 20 with which the lower end surface 13a abuts are inclined upward and outward. When the fixing screw 30 is tightened, the skirt portion 13 receives an inward force and is elastically deformed inward, and the upper portion of the side wall portion 22 provided with the contact portion 25 receives an outward force and is elastically outward. Since it is deformed, it is possible to keep the state in which the flange-shaped protruding portion 24 provided on the side wall portion 22 is in close contact with the inner surface 13b of the skirt portion 13, and it is possible to obtain sufficient sealing performance. it can.

  Further, in the sealed container of the present embodiment, since the sealing property can be improved by the structure of the sealed container itself, there is no need to separately use a packing material, an adhesive or the like which has a problem of aging deterioration, and Sex can be maintained. Further, the number of parts can be reduced, and the manufacturing cost can be reduced.

(Second embodiment)
A sealed container according to the second embodiment will be described mainly with reference to FIG. In the second embodiment, the same components as those in the sealed container according to the first embodiment are denoted by the same reference numerals, and description thereof is basically omitted. The different points will be mainly described.

  In the sealed container 1B of the second embodiment, a plurality of flange-shaped protrusions 16 are provided around the inner surface 13b of the skirt 13 of the lid 10. The flange-shaped protrusion 16 keeps the hermetically sealed state of the sealed container 1 by being in close contact with the upper outer surface 22 a of the side wall 22 of the container body 20.

  In the sealed container 1 </ b> B, by tightening the fixing screw 30, as shown in FIG. 3, the flange-shaped protrusion 16 provided on the skirt portion 13 of the lid 10 has a flange-shaped protrusion provided on the side wall 22. Get over part 24 in the downward direction. Further, as shown in FIG. 3B, the lower end surface 13a which is the inclined surface of the skirt portion 13 of the lid 10 is inclined obliquely upward toward the inside from the upper surface 25a which is the inclined surface of the contact portion 25 of the container body 20. Upon receiving the force F3, the upper surface 25a, which is the inclined surface of the contact portion 25 of the container body 20, goes outward from the lower end surface 13a, which is the inclined surface of the skirt portion 13 of the lid 10, of the same size in a direction opposite to the force F3. It receives a diagonally downward force F4. Since the force F3 includes an inward component, the skirt portion 13 receives an inward force and is elastically deformed inward, and the force F4 includes an outward component. The upper portion of the provided side wall portion 22 receives an external force and elastically deforms outward. As a result, the flange-shaped protrusion 24 provided on the upper outer surface 22a of the side wall 22 is pressed against the inner surface 13b of the skirt portion 13 to be elastically deformed and adhered thereto, and the flange provided on the inner surface 13b of the skirt portion 13 The lid 10 is fixed to the container main body 20 in a state where the protruding portion 16 is pressed against the outer surface 22 a on the upper portion of the side wall portion 22 and is elastically deformed and closely attached.

  As described above, in the sealed container according to the present embodiment, in addition to the flange-shaped protrusion 24 provided on the outer surface 22 a of the side wall 22, the flange-shaped protrusion 16 is provided on the inner surface 13 b of the skirt 13. Since the pressure is brought into pressure contact with the outer surface 22a of the side wall portion 22 so as to be elastically deformed and brought into close contact, the sealing performance of the sealed container 1B can be further improved.

(Third embodiment)
A sealed container according to the third embodiment will be described mainly with reference to FIG. In the third embodiment, the same components as those in the sealed container according to the first embodiment are denoted by the same reference numerals, and description thereof is basically omitted. The different points will be mainly described.

  As shown in FIG. 4, the sealed container 1 </ b> C of the third embodiment has a lower end surface 12 a of a side wall portion 12 of a lid 10 formed on an inclined surface that is inclined upward and outward. The upper end surface 22b of the portion 22 is formed on an inclined surface that is inclined upward and outward. The upper surface 251a of the contact portion 25 is formed in a flat shape, and the lower end surface 131a of the skirt portion 13 is formed in a flat shape.

  In order to attach the lid 10 of the sealed container 1C to the container main body 20 and fix the lid 10 to the container main body 20, first, a container (not shown) is stored in the container main body 10, and then the lower end surface of the skirt portion 13 of the lid 10 131a is brought into contact with the upper surface 251a of the contact portion 25 of the container body 20, and the lower end surface 12a which is the inclined surface of the side wall portion 12 of the lid 10 is connected to the upper end surface 22b which is the inclined surface of the side wall portion 22 of the container main body 20. Then, the opening 23 of the container body 20 is closed by the lid 10.

  Next, by tightening the fixing screw 30, the lower end surface 12a, which is the inclined surface of the side wall portion 12 of the lid 10, is the inclined surface of the side wall portion 22 of the container body 20, as shown in FIG. Upon receiving an obliquely upward force F5 directed inward from the upper end surface 22b, the upper end surface 22b, which is the inclined surface of the side wall portion 22 of the container main body 20, receives the force F5 from the lower end surface 12a, which is the inclined surface of the side wall portion 12 of the lid 10. It receives a diagonally downward force F6 directed in the opposite direction to the outside of the same magnitude. Since the force F5 includes an inward component, the skirt portion 13 provided continuously to the side wall portion 12 receives a force inward and elastically deforms inward, and the force F6 includes an outward component. Therefore, the side wall portion 22 receives an external force and elastically deforms outward. As a result, the lid 10 is fixed to the container body 20 in a state where the flange-shaped projection 24 provided on the outer surface 22a at the upper part of the side wall 22 is pressed against the inner surface 13b of the skirt portion 13 and is elastically deformed and closely attached. .

  As described above, in the sealed container of the present embodiment, the lower end surface 12a of the side wall portion 12 of the lid 10 and the upper end surface 25b of the side wall portion 22 of the container body 20 with which the lower end surface 12a abuts are directed upward and outward. When the fixing screw 30 is tightened and formed on an inclined surface, the skirt portion 13 provided continuously to the side wall portion 12 of the lid 10 receives an inward force and is elastically deformed inward. 22 receives an external force and is elastically deformed outward, so that the flange-shaped protrusion 24 provided on the side wall 22 of the container body 20 is formed on the inner surface of the skirt 13 similarly to the first embodiment. 13b can be kept in close contact, and sufficient sealing performance can be obtained.

  As described above, the present invention has been described with reference to the embodiments. However, the present invention is not limited to the above embodiments, and various modifications are possible. For example, in each of the above embodiments, an example in which the sealed container has two flange-shaped protrusions 24 provided around the outer surface 22a of the side wall 22 has been described. Sufficient sealing performance can be obtained, and if three or more flange-shaped protrusions 24 are provided, the sealing performance can be further improved. Similarly, the number of the flange-shaped protrusions 16 provided on the inner surface 13b of the skirt portion 13 of the sealed container 1B in the second embodiment may be one or three or more. .

  Further, in each of the above-described embodiments, an example in which the lid 10 and the container main body 20 have a substantially rectangular shape with rounded corners in plan view has been described, but the lid 10 and the container main body 20 are not limited to this shape. For example, the present invention can be applied to a circular shape in plan view.

  Further, in each of the above-described embodiments, the example in which the screw threaded portion 14 is vertically provided on the lower surface of the top plate portion 11 of the lid 10 has been described, but the screw threaded portion 14 is provided on the upper surface of the bottom plate portion 21 of the container body 20. You may make it erect. In this case, the screw head insertion concave portion 26 may be formed so as to be recessed downward in the top plate portion 11 of the lid 10. Further, without providing the screw head insertion concave portion 26, a through hole into which the male screw portion of the fixing screw 30 is inserted may be formed in the bottom plate portion 21 of the container body 20 or the top plate portion 11 of the lid 10. .

  In the second embodiment, when the lower end surface 13a of the skirt portion 13 and the upper surface 25a of the contact portion 25 of the container body 20 are inclined surfaces as in the first embodiment, the skirt The example in which the plurality of flange-shaped protrusions 16 are provided around the inner surface 13b of the portion 13 has been described. However, as in the third embodiment, the lower end surface 12a of the side wall 12 of the lid 10 and the side wall of the container body 20 are provided. When the upper end surface 22b of the portion 22 is an inclined surface, the flange-shaped protrusion 16 may be provided around.

1, 1B, 1C Sealed container 10 Cover 11 Top plate portion 12 Side wall portion 12a Lower end surface 13 Skirt portion 13a, 131a Lower end surface 13b Inner surface 14 Screw threaded portion 14a Female screw portion 16 Projection portion 20 Container body 21 Bottom plate portion 22 Side wall portion 23 Opening 24 Projecting part 25 Contact part 25a, 251a Upper surface 26 Screw head insertion recess 30 Fixing screw

Claims (5)

A sealed container comprising a lid and a container body to which the lid is attached and the opening is closed, wherein the lid is fixed to the container body by screws,
The lid includes a top plate portion, a side wall portion hanging down from a peripheral edge of the top plate portion, and an inclined surface that is provided below the outside of the side wall portion and whose lower end surface is inclined upward toward the outside. With a certain skirt part,
The container body, a bottom plate portion, a side wall portion erected on the peripheral edge of the bottom plate portion, a flange-shaped protrusion formed around the outer surface of the side wall portion and pressed against the inner surface of the skirt portion, An inclined surface which is provided below the projecting portion and whose upper surface is inclined upward toward the outside, and has a flange-shaped contact portion with which the lower end surface of the skirt portion is in contact with the upper surface; A sealed container characterized by the above-mentioned.   The hermetically sealed container according to claim 1, wherein a flange-shaped protrusion is provided around the inner surface of the skirt and pressed against the outer surface of the side wall of the container body. A female screw portion is formed on the inner peripheral surface, and a screw screw portion to which the screw is screwed to the female screw portion is vertically provided on the lower surface of the top plate portion, or is set up on the upper surface of the bottom plate portion. sealed container according to claim 1 or 2, characterized. The sealed container according to any one of claims 1 to 3 , wherein the lid and the container body are made of a synthetic resin. The sealed container according to any one of claims 1 to 4 , wherein a plurality of projecting portions of the container main body are provided.