TW202227356A - Opening and closing member capable of performing whole washing by automatic cleaning - Google Patents

Abstract

The present invention provides an inexpensive opening and closing member capable of performing whole washing by automatic cleaning. An opening and closing member for opening and closing an opening by being attached to and detached from the opening mounted on a container body. The opening and closing member includes: a top surface part that covers the opening in a closed state in which the opening is blocked; a grip part that extends on the outer edge of the top surface part and grips the outer periphery of the opening end of the container body in the closed state; and a pressure reducing channel that penetrates into a tubular space formed on the grip part and is installed in the grip part, and is configured to reduce the pressure in the space. Both the grip part and the top surface part are mainly formed of a rubber material. The space of the grip part is reduced in pressure by the pressure reducing channel to form a negative pressure, and is dismount from or mounted to the container body in a contracted state.

Description

opening and closing member

The present invention relates to an opening and closing member for opening and closing an opening by attaching and detaching an opening attached to a container body.

At present, when solid preparations such as tablets or powders are produced in solid preparation factories such as pharmaceutical companies, batch production is the basic production method, so containers must be used for the transportation and storage of raw materials and intermediate products. In addition, the container is required to be airtight so that the solid preparation in the container does not deteriorate during storage.

Here, in order to ensure the airtightness of the container, the container is usually hermetically sealed by tightening the lid and the container body with a clamp band via a gasket (for example, refer to Patent Document 1). Furthermore, as a device for opening and closing the lid of the airtight container as described above, a robot that opens and closes a clamp ring is known (for example, see Non-Patent Document 1). In this robot, the clamping ring can be opened and closed without manpower, thus saving manpower in the production line.

However, in the case of using the above-mentioned conventional technology, at least three robots are required to automatically open and close the lid, and there is a problem that it is too expensive. In addition, the meticulous work of opening and closing the lid requires manpower, but the operation of tightening or releasing the clamp by a person has to cope with the erecting work of the clamp lever by fingertips, etc., which is difficult. . Therefore, in recent years, lids capable of automatically opening and closing containers without using a clamp have been developed, and are used in many cases, including solid preparation factories. [Prior Art Literature] [Patent Literature]

[Patent Document 1] Utility Model Registration No. 3156962 [Non-patent literature]

[Non-Patent Document 1] OMC Co., Ltd., "Robot Loading and Unloading System", [online], [Retrieved on November 9, 2020], Internet < URL: http://omc.jpn.org/2012 /product_medical/cross_mix/robotdesorptionsystem_medical.htm>

[Problems to be Solved by Invention]

However, as shown in FIG. 15, the cover has a two-part structure of a metal cover 106 and a resin tube seal 108. Therefore, although the opening and closing of the cover 106 is automated, it cannot be disassembled for cleaning. Fully automated including cleaning. In addition, there is a problem that the cost of the portion of the metal cover 106 increases.

An object of the present invention is to provide an inexpensive opening and closing member that can be cleaned in its entirety by automatic cleaning. [Technical means to solve the problem]

The opening and closing member of the present invention opens and closes the opening by attaching and detaching to the opening attached to the container body, and the opening and closing member includes: a top surface covering the opening in a closed state that blocks the opening; a grip portion extending on the outer edge of the top surface portion and gripping the outer periphery of the opening end portion of the container body in the closed state; and A decompression channel penetrates to the inside of the tubular space formed on the grip portion and is installed in the grip portion, and decompresses the space, Any one of the grip portion and the top surface portion is mainly formed of a rubber material, The space of the grip portion is decompressed by the decompression passage to become a negative pressure, and is attached to and detached from the container body in a contracted state.

In this way, since either the top surface portion and the grip portion are formed of a rubber material, it is not necessary to separate the components of the opening and closing member during cleaning, and the opening and closing member can be handled integrally, so that the entire cleaning can be performed by automatic cleaning. In addition, since both the top surface portion and the grip portion are made of rubber, the manufacturing cost can be finally reduced. In addition, the opening and closing member can be attached to and detached from the container body by decompressing the space of the grip portion to make it a negative pressure, so that the structure of sealing and releasing the container can be simplified, and the opening and closing member can be Opening and closing work becomes easy.

In addition, in the opening and closing member of the present invention, The grip includes: a first grip portion extending from the top surface portion and provided with the decompression channel; and The second grip portion is formed to be elastically deformable into a contracted shape in which the space is decompressed to become negative pressure, and a recovery shape recovered from the contracted shape, The first grip portion, the second grip portion, and the top surface portion are formed of the same rubber material.

Thereby, since the opening and closing member can be manufactured from a single material, manufacture is cheap and easy. In addition, by integrally forming the opening and closing member from a single material, the handling of the opening and closing member is also easy, and it is difficult to form the connection portion between the members compared with the case where the top surface portion, the first grip portion, and the second grip portion are formed of different materials. Therefore, cleaning can be surely performed.

In addition, in the opening and closing member of the present invention, The grip includes: a first grip portion extending from the top surface portion and provided with the decompression channel; and The second grip portion is formed to be elastically deformable into a contracted shape in which the space is decompressed to become negative pressure, and a recovery shape recovered from the contracted shape, The hardness of the first grip portion is greater than the hardness of the second grip portion. Thereby, the hardness of the first grip portion is maintained, and the second grip portion is easily elastically deformed, so that the sealing and release of the container can be facilitated while maintaining the strength of the upper surface.

In addition, in the opening and closing member of the present invention, The first grip portion and the joint portion on the inner peripheral side of the second grip portion are welded.

In this way, by integrating the joint portion on the inner peripheral side by welding, the two members can be prevented from being separated when a load is applied to the portion.

In addition, in the opening and closing member of the present invention, In the first grip portion and the top surface portion, a layer including a high-hardness member having a hardness greater than at least a rubber material is provided on the outer surface or inside thereof.

Thus, by providing the layer containing a high hardness member to the 1st grip part and the top surface part, the intensity|strength of a cover can be strengthened, for example, when a container is further stacked on the cover, the cover can be prevented from being bent. In addition, the grip portion can be prevented from sagging and the position of the decompression channel is prevented from changing.

In addition, in the opening and closing member of the present invention, A protruding portion protruding radially outward is formed on the upper side of the outer periphery of the container body, A recessed portion is formed on the inner peripheral upper side of the second grip portion, and the recessed portion is engaged with the protruding portion when the opening of the container body is closed by the opening and closing member.

Thereby, the lid can be reliably sealed.

In addition, in the opening and closing member of the present invention, The upper surface of the top surface portion is recessed relative to the upper surface of the first grip portion. Thereby, it becomes easy to store the container on the lid. [Effect of invention]

ADVANTAGE OF THE INVENTION According to this invention, the inexpensive opening-closing member which can perform whole cleaning by automatic cleaning can be provided.

Hereinafter, with reference to the drawings, the opening and closing member according to the embodiment of the present invention will be described by taking, as an example, the case of opening and closing a lid of a small tank storing solid preparations such as tablets or powders in a solid preparation factory such as a pharmaceutical company. FIG. 1 is a schematic perspective view showing a container according to an embodiment, and FIG. 2 is a main part cross-sectional view showing a main part of the container in the present invention. As shown in FIG. 1 , the container 2 includes a container body 4 and a lid 6 (an opening and closing member).

The container body 4 is a bottomed and cylindrical member formed of metal, and on the side of the opening 4 a of the container body 4 is formed an extension with a substantially circular cross-section that protrudes radially outward with respect to the outer peripheral surface of the container body 4 . Exit 4b.

In addition, the lid 6 is a disc-shaped member that is attached to and detached from the opening 4a of the container body 4 to open and close the opening 4a, and is made of rubber such as silicone, ethylene propylene diene monomer (EPDM), or the like, for example. material made of rubber. The cover 6 includes: a top surface 7 , a holding part 8 and a decompression part 9 .

Here, as shown in FIG. 2, the top surface part 7 covers the opening 4a in the closed state which blocks the opening 4a of the container main body 4, and forms the center part of the disk-shaped cover 6. In addition, a convex portion 7 a is annularly formed on the lower outer edge on the inner peripheral side of the top surface portion 7 .

The grip portion 8 extends on the outer periphery of the top surface portion 7 and grips the outer periphery of the opening end portion of the container body 4 in the closed state. The gripping portion 8 includes a first gripping portion 8a extending from the top surface portion 7 and a second gripping portion 8b located below the first gripping portion 8a.

The first grip portion 8a is integrally formed of the same rubber material as the top surface portion 7 without joints, has the same hardness as the top surface portion 7, and has a second grip portion 8b attached below. Moreover, the flow path 90 for installing the decompression channel 9 is formed in the upper direction of the 1st grip part 8a, and air enters and exits with respect to the tubular space 8c mentioned later via the decompression channel 9. In addition, the joint portion 8d on the inner peripheral side of the first grip portion 8a and the second grip portion 8b is welded at the time of molding the lid 6 . Thereby, the separation of the first grip portion 8a and the second grip portion 8b can be prevented when a load is applied to the portion. Moreover, the junction part 8e of the outer peripheral side of the 1st holding part 8a and the 2nd holding part 8b is adhere|attached by an adhesive agent.

In addition, a tubular space 8c is formed between the first grip portion 8a and the second grip portion 8b, and the tubular space 8c is half included in the second grip portion 8b. In this way, by configuring the grip portion 8 by the first grip portion 8a and the second grip portion 8b, the structure for sealing and releasing the container 2 can be simplified.

Moreover, the inner side protrusion part 8g and the protrusion bottom part 8h which have an inverted M-shape in cross section are formed in the lower end of the 2nd grip part 8b. Here, the inner protruding portion 8g protrudes inward of the space 8c, and the protruding bottom portion 8h forms a bottom portion outside the space 8c. Further, the second grip portion 8b includes a jaw portion 8i protruding toward the inner peripheral side, and a recessed portion 8j recessed in a substantially semicircular cross-section is formed on the inner peripheral upper side of the jaw portion 8i. The recessed portion 8j is engaged with the protruding portion 4b when the lid 6 is closed.

Here, the second grip portion 8b is configured so that the inner protruding portion 8g and the protruding bottom portion 8h can be bent and extended, and the space 8c (second grip portion 8b) is formed by bending and extending the inner protruding portion 8g and the protruding bottom portion 8h as the bending and extending portions. The elastic deformation becomes a contracted shape (refer to FIG. 5( b )) and a restored shape (the state of FIG. 2 ).

In addition, in order to facilitate the elastic deformation, the second grip portion 8b is formed of a rubber material having a lower hardness than that of the first grip portion 8a (that is, the hardness of the first grip portion 8a is higher than that of the second grip portion 8b hardness). Thus, by making the 2nd holding part 8b easily elastically deform, it becomes easy to seal and release the seal|sticker of the container 2.

Moreover, the 2nd grip part 8b is arrange|positioned along the outer peripheral surface of the container main body 4 when the lid|cover 6 is closed, and the lid|cover 6 is externally fitted with respect to the container main body 4. By arranging the grip portion 8 along the protruding portion 4b formed on the outer periphery of the container body 4, when the container body 4 is tilted and the preparation is discharged, the preparation can be prevented from accumulating around the inner periphery of the container body 4.

Further, the inner diameter of the second grip portion 8b is formed to be smaller than the outer diameter of the container body 4 . Thereby, the outer peripheral surface of the container body 4 is fastened by the shrinking force of the holding part 8 in the state where the second holding part 8b and the extension part 4b are engaged, and the airtightness of the container 2 is maintained.

The decompression passage 9 is a nozzle that penetrates from the top surface of the first grip portion 8 a to the tubular space 8 c via the flow passage 90 , and passes through the decompression passage 9 , a decompression portion 10 c (refer to FIG. 5( a ) described later). ) communicates with space 8c. In addition, the decompression channel 9 is made of metal, but is adhered (welded) to the inner peripheral surface of the flow channel 90, so that the agent does not enter the adhered portion, so it does not escape from the first gripping portion during cleaning. 8a is removed.

3 is a schematic view showing a state in which the lid 6 of the container 2 is opened and closed by the opening and closing robot 10 in the container 2 including the lid 6 according to the embodiment. As shown in FIG. 3 , the lid 6 is opened and closed by the opening and closing robot 10 placing the container 2 on the work table 12 . The opening and closing robot 10 includes a grip portion 10a for gripping the container 2, an arm 10b for moving the container 2 gripped by the grip portion 10a, a decompression portion 10c, and an opening and closing portion 10d, and includes a lid 6 along the upper and lower sides. The vertically extending guide 10e is a vertically movable portion 10f (moving portion) that moves up and down.

Here, the decompression portion 10c is provided in the decompression passage 9 when the lid 6 is opened and closed, and the space 8c of the grip portion 8 is decompressed through the decompression passage 9 . In addition, the opening and closing portion 10d includes a suction cup or the like, and is adsorbed on the top surface of the cover 6 to open and close the cover 6 .

Next, a program for opening and closing the lid 6 of the container 2 by the opening and closing robot 10 will be described. First, as shown in FIG. 4 , in the solid preparation factory, the opening and closing robot 10 , the rack 14 for storing the container 2 , and the workbench 12 are arranged at predetermined places, respectively. Here, when the lid 6 of the container 2 is opened, as shown in FIG. 4( a ), the opening and closing robot 10 first moves the arm 10 b , and the lid 6 displayed on the shelf 14 is held and closed by the gripping portion 10 a container 2.

Next, the opening and closing robot 10 moves the arm 10b to transfer the container 2 onto the work table 12 . Further, at this point in time, as shown in FIG. 5( a ), the recessed portion 8 j of the grip portion 8 is engaged with the protruding portion 4 b of the container body 4 , and the container 2 is sealed by the lid 6 . Next, as shown in FIG.4(b), the opening and closing robot 10 lowers the vertical movable part 10f along the guide 10e. Thereby, the opening and closing portion 10d is in contact with the top surface of the cover 6, and the decompression portion 10c is installed in the decompression passage 9. As shown in FIG.

Next, as shown in FIG. 5( b ), the opening and closing robot 10 operates the decompression unit 10 c , sucks the fluid in the space 8 c of the grip portion 8 through the decompression channel 9 , and decompresses (reduces the pressure) in the space 8 c pressing process). Thereby, the space 8c becomes a negative pressure, the inner protrusion 8g and the protrusion bottom 8h of the second grip portion 8b move to the outer peripheral side, and the space 8c is elastically deformed into a contracted shape. Therefore, a gap is formed between the recessed portion 8j and the protruding portion 4b, the close contact between the two is released, and the lid 6 can be removed from the container body 4 .

In this state, the opening and closing robot 10 attracts the top surface of the lid 6 through the opening and closing portion 10d, and raises the vertical movable portion 10f along the guide 10e to move the lid 6 from the opening 4a of the container body 4, thereby opening the container 2. Cover 6 (open step).

On the other hand, when the lid 6 of the container 2 is closed, the opening and closing robot 10 transfers the container 2 with the lid 6 vacant, that is, the container body 4 on the work table 12, and makes the top surface adsorbed on the opening and closing portion 10d. The lid 6 in the state is located directly above the container body 4 . Next, as shown in FIG. 6( a ), the opening and closing robot 10 operates the decompression part 10 c in the above state, and sucks the fluid in the space 8 c of the grip part 8 through the decompression channel, and the pressure of the grip part 8 is increased. The space 8c is decompressed (decompression step). Thereby, the space 8c becomes a negative pressure, and the space 8c contracts.

Next, as shown in FIG. 6( b ), the opening and closing robot 10 directly lowers the vertical movable portion 10 f along the guide 10 e to cover the opening 4 a of the container body 4 with the lid 6 (blocking step). In this case, since the space 8c is contracted and the second grip portion 8b is deformed, the lower end of the jaw portion 8i does not collide with the protruding portion 4b and prevents the operation of closing the lid 6 . In addition, when the lid 6 is closed, the container body 4 is made of metal, whereas the lid 6 is formed of a rubber material, so that the metal powder is prevented from coming into contact with each other and generation of metal powder is prevented, thereby preventing the metal powder from being mixed into the container body 4 contained in the formulation. When the lid 6 is placed on the opening 4a of the container body 4 and the opening 4a is closed by the lid 6, the opening and closing robot 10 stops the decompression by the decompression unit 10c (stop step).

When the decompression by the decompression part 10c is stopped, the fluid (outside air) flows into the space 8c through the decompression passage 9, whereby the pressure of the space 8c is restored from the negative pressure state, and the pressure of the second grip part 8b is restored. The cross-sectional shape is restored to the original state (see FIG. 5( a )). In this case, the inner protruding portion 8g and the protruding bottom portion 8h move to the inner peripheral side, the space 8c is elastically deformed into a restored shape, the protruding portion 4b is engaged with the recessed portion 8j to be in close contact, and the container body 4 closed by the lid 6 becomes airtight state (airtight process). In addition, in the restored shape in which the container body 4 is in an airtight state, the internal pressure of the space 8c and the external pressure of the grip portion 8 are equalized (the internal pressure of the space 8c is equal to the atmospheric pressure), and leakage of the fluid in the container 2 can be prevented. . Moreover, the 2nd grip part 8b is comprised so that the container 2 may be made into an airtight state by restoring the shape, and the airtight state of the container 2 may be released by shrinking the shape on the other hand.

According to the opening and closing member of the present embodiment, any one of the top surface portion 7 and the grip portion 8 constituting the cover 6 is formed of a rubber material, and thus, as shown in FIG. 15 , it is not necessary to include the metal cover 106 and resin. As in the case of the two-part structure of the manufactured pipe seal 108, the metal part is removed during cleaning, and the opening and closing member can be handled integrally, so that the entire cleaning can be performed by automatic cleaning. In addition, since both the top surface portion 7 and the grip portion 8 constituting the cover 6 are not made of metal but are made of rubber, the manufacturing cost can be finally reduced. In addition, since the interior of the container body 4 is sealed by tightening the container body 4 by the elastic force of the grip portion 8, compared with the case where the extension portion 4b is pressed by the restoring pressure of the tube seal 108 as shown in FIG. 15, the amount of fluid can be reduced. The reduction of tightness caused by leakage.

In addition, when the lid 6 is opened and closed, the space 8c of the second grip portion 8b is decompressed and becomes a negative pressure, so that the lid 6 can be attached to and detached from the container body 4, so that the sealing and sealing of the container 2 can be released. It becomes simple, and the operation|work of opening and closing the cover 6 can be made easy. In addition, since the clamp ring is not used, the lid 6 can be opened and closed by one opening and closing robot 10, and the cost of the robot arranged in the solid preparation factory can be reduced.

In addition, as shown in FIG. 7( a ), when the internal pressure of the container 2 ′ rises, when the top surface portion 7 ′ is made of metal, the lid 6 ′ floats directly and falls off from the container body 4 ′. As shown in FIG. 7( b ), by making both the top surface portion 7 and the grip portion 8 of the container 2 made of rubber, the top surface portion 7 is pushed up with the concave portion 8j as a fulcrum, so that the lid 6 can be prevented from being removed from the container body. 4 fall off. In addition, when the internal pressure of the container 2 rises, the jaws 8i enter to the inner peripheral side and grip the extension 4b from below, so that the pressure resistance of the container 2 can be improved.

Moreover, in the said embodiment, as shown in FIG. 8, the upper surface of the top surface part 7 may be made to be one stage lower than the upper surface of the 1st grip part 8a. That is, the recessed part 7b may be formed in the upper surface of the top surface part 7. Thereby, as shown in FIG. 9 , the container body 4 can be easily stacked on the lid 6 . In this case, the depth of the recessed portion 7b may be adjusted, and as shown in FIG. 10 , the depth of the recessed portion 7b may be made shallower than that shown in FIG. 8 . In addition, as shown in FIG. 11 , the width of the convex portion 7 a may be greatly extended to the center side of the cover 6 .

In addition, as shown in FIG. 12 , a layer 16 containing metal may be provided on the first grip portion 8 a and the top surface portion 7 . Thereby, the strength of the lid 6 can be enhanced, for example, even when the container body 4 is further stacked on the lid 6, the lid 6 can be prevented from being bent. In addition, it is possible to prevent a situation in which the holding portion 8 sags and the decompression passage 9 is inclined toward the outer peripheral side, so that the decompression portion 10 c cannot be attached to the decompression passage 9 . In addition, in this case, since the rigidity of the cover 6 is ensured by providing the layer 16 containing metal, the hardness of the first grip portion 8a, the second grip portion 8b and the top surface portion 7, that is, the hardness of the rubber material can be all made possible. same.

In addition, the metal-containing layer 16 does not necessarily need to be provided in the deep position of the first grip portion 8a and the top surface portion 7. For example, as shown in FIG. 13, it may be formed near the surface layer, or as shown in FIG. 14. As shown, it is provided on the outer surfaces of the first grip portion 8 a and the top surface portion 7 . In this case, the ends of the metal-containing layer 16 can be embedded in the lid 6 . As a result, no seam between the metal and the rubber material is formed on the outer surface of the cover 6 , and there is no room for the agent to remain on the outer surface of the cover 6 .

In addition, in the said embodiment, the case where the cover 6 is opened and closed by the opening and closing robot 10 was demonstrated, but it is not limited to this. For example, the cover 6 may be opened and closed manually by an operator. In this case, the convex portion 7a shown in FIG. 2 has an alignment function. For example, when the cover 6 is placed on the opening 4a by a human hand, if the cover 6 is displaced, the convex portion 7a is positioned on the protruding portion 4b, the balance is broken, and the cover 6 oscillates, so that the operator perceives the inclined installation cover 6. When all the convex portions 7a are located in the protruding portion 4b, the lid 6 is closed and the rattling disappears. Thereby, positioning of the cover 6 is facilitated. Further, the gap A (see FIG. 2 ) between the protruding portion 4 b and the convex portion 7 a in the closed state is preferably 1.5 mm or less, but more preferably 1 mm or less.

In addition, in the above-mentioned embodiment, the grip portion 8 having the inner protruding portion 8g having an inverted M-shape in cross-section at the lower end and the second grip portion 8b having the protruding bottom portion 8h formed at the lower end has been described as an example. The shape of the grip portion 8 does not necessarily have to be the shape as long as it can seal the container 2 when the lid 6 is closed. For example, the shape of the portion corresponding to the second grip portion 8b may be a substantially circular cross-sectional shape.

In the said embodiment, the case where the grip part 8 is arrange|positioned along the outer peripheral surface of the container main body 4 when closing the lid|cover 6 was demonstrated, but it is not limited to this. The grip portion 8 may be arranged along the inner peripheral surface of the container body 4 when the lid 6 is closed. In the above-described embodiment, the metal-containing layer 16 is not necessarily limited to a metal, as long as the cover 6 is not bent, and may be formed of a high-hardness member having a hardness greater than that of a rubber material at least. Specifically, it is preferable to form with a member having a hardness higher than that of the top surface portion 7 or the grip portion 8 .

2, 2': container 4: Container body 4a: Opening 4b: Projection 6, 6', 106: cover 7, 7': top face 7a: convex part 7b: Recess 8: Grip 8a: The first grip 8b: Second grip 8c: Space 8d, 8e: junction 8g: inner protrusion 8h: protruding bottom 8i: Jaw 8j: Recess 9: Decompression channel 10: Open and close the robot 10a: Grip 10b: Arm 10c: Decompression section 10d: Opening and closing part 10e: Guide 10f: Upper and lower moving parts 12: Workbench 14: Shelves 16: Layers containing metals 90: flow path 108: Tube seals A: gap

FIG. 1 is a schematic perspective view showing a container according to an embodiment. 2 is a cross-sectional view of a main part showing a main part of the lid of the container according to the embodiment. 3 is a schematic diagram showing a state in which a lid of a container is opened and closed by an opening and closing robot in the opening and closing mechanism of the embodiment. 4 is a diagram for explaining a program for opening and closing a lid of a container by an opening and closing robot in the opening and closing mechanism of the embodiment. 5 is a view showing a state in which the space of the grip portion is reduced in pressure when the lid of the container is opened in the opening and closing mechanism of the embodiment. 6 is a view showing a state in which the space of the grip portion is decompressed when the lid of the container is closed in the opening and closing mechanism of the embodiment. 7 is a view showing a state in which the top surface portion of the cap is pushed up when the internal pressure of the container of the embodiment rises, and the cap cannot be detached. Fig. 8 is a diagram showing a recessed portion formed in the upper surface of the top surface portion in the lid of the container according to the embodiment. FIG. 9 is a view showing a state in which the container is stacked on the lid in the lid of the container shown in FIG. 8 . Fig. 10 is a view showing a recessed portion formed in the upper surface of the top surface portion in the lid of the container according to the embodiment. FIG. 11 is a view in which the width of the convex portion is greatly expanded to the center side of the lid in the lid of the container according to the embodiment. FIG. 12 is a view showing that a layer containing metal is provided on the lid in the lid of the container according to the embodiment. FIG. 13 is a view showing that a layer containing a metal is formed near the surface layer of the lid in the lid of the container according to the embodiment. FIG. 14 is a view showing that a layer containing metal is formed on the outer surface of the lid in the lid of the container according to the embodiment. 15 is a cross-sectional view of a main part showing a main part of a lid of a conventional container.

2: container

4: Container body

4a: Opening

4b: Projection

6: Cover

7: top face

7a: convex part

8: Grip

8a: The first grip

8b: Second grip

8c: Space

8d, 8e: junction

8g: inner protrusion

8h: protruding bottom

8i: Jaw

8j: Recess

9: Decompression channel

90: flow path

A: gap

Claims (7)

An opening and closing member, which opens and closes the opening by attaching and detaching the opening installed on the container body, and is characterized by comprising: a top surface covering the opening in a closed state that blocks the opening; a grip portion extending on the outer edge of the top surface portion and gripping the outer periphery of the opening end portion of the container body in the closed state; and A decompression channel penetrates to the inside of the tubular space formed on the grip portion and is installed in the grip portion, and decompresses the space, Any one of the grip portion and the top surface portion is mainly formed of a rubber material, The space of the grip portion is decompressed by the decompression passage to become a negative pressure, and is attached to and detached from the container body in a contracted state. The opening and closing member according to claim 1, wherein: The grip includes: a first grip portion extending from the top surface portion and provided with the decompression channel; and The second grip portion is formed to be elastically deformable into a contracted shape in which the space is decompressed to become negative pressure, and a recovery shape recovered from the contracted shape, The first grip portion, the second grip portion, and the top surface portion are formed of the same rubber material. The opening and closing member according to claim 1, wherein: The grip includes: a first grip portion extending from the top surface portion and provided with the decompression channel; and The second grip portion is formed to be elastically deformable into a contracted shape in which the space is decompressed to become negative pressure, and a recovery shape recovered from the contracted shape, The hardness of the first grip portion is greater than the hardness of the second grip portion. The opening and closing member according to claim 3, characterized in that: The first grip portion and the joint portion on the inner peripheral side of the second grip portion are welded. The opening and closing member according to claim 2, characterized in that: In the first grip portion and the top surface portion, a layer including a high-hardness member having a hardness greater than at least a rubber material is provided on the outer surface or inside thereof. The opening and closing member according to any one of Claims 2 to 5, characterized in that: A protruding portion protruding radially outward is formed on the upper side of the outer periphery of the container body, A recessed portion is formed on the inner peripheral upper side of the second grip portion, and the recessed portion is engaged with the protruding portion when the opening of the container body is closed by the opening and closing member. The opening and closing member according to any one of Claims 2 to 5, characterized in that: The upper surface of the top surface portion is recessed relative to the upper surface of the first grip portion.

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