JPH0123975Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a closed container.

In conventional airtight containers, the lid is pressed against the opening of the container body with a screw or clasp, and the elastic sealing material attached to the lid side is strongly pressed against the upward facing sealing surface of the opening. . However, in the case of pressing with screws, it is uncertain whether the seal is completely closed to ensure a tight seal, and in the case of using clasps, opening and closing operations are troublesome. In addition, the present applicant has previously proposed a sealing lid in which an inner lid having a seal portion that is press-fitted to the inner periphery of the container opening is connected to an outer lid that is screwed onto the container opening by left-handed screw engagement, which is disclosed in Japanese Utility Model Publication No. 55-46611. It was proposed in a public notice. With this airtight lid, the container opening can be opened and closed simply by rotating the outer lid, and a complete seal can be obtained by the sealing portion of the inner lid. However, in the case of this airtight lid, since the outer lid and the inner lid rotate as a unit, the seal part slides by friction in the circumferential direction while being in pressure contact with the inner periphery of the opening, making the seal part prone to wear. Additionally, there is a problem in that the rotational resistance of the outer lid increases, making it difficult to open and close. Furthermore, we have proposed a method in which a treatment material is placed on the inner lid to create the desired atmosphere inside the container, but it is not possible to know the treatment material or the condition inside the container when the container is sealed. However, there are problems in that it is difficult to accurately deal with the lifespan of the treated material, and there are cases where the user is unaware that the atmosphere inside the container is not in the desired state.

The present invention aims to provide an airtight container that solves these problems, and ensures a seal by compressing the elastic sealing material on the outer periphery of the cylindrical part of the closing lid against the inner periphery of the opening of the container body. In addition, by connecting the locking lid and the closing lid that are screwed to the opening so that they can rotate relative to each other, the opening can be closed without the closing lid rotating together when the locking lid is screwed into the opening of the container body. Furthermore, by viewing the storage area for the processing material through the annular locking lid and the transparent closing lid, it is possible to know the state of the processing material or the atmosphere inside the container.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In FIG. 1, 1 is a container body, and an opening 2 having a screw 3 on the outer periphery is formed at its upper end. Reference numeral 4 denotes a lid consisting of a closing lid 5 and a locking lid 6 that engages with the outer periphery of the upper end of the closing lid 5. The closing lid 5 has a cylindrical portion 7 that fits into the inner periphery of the opening 2.
and a closing plate part 8 that closes the upper end opening of the cylindrical part 7. An annular groove 9 is formed on the outer periphery of the lower part of the cylindrical body.
The inside of the container body 1 is sealed by compressing the elastic sealing material 10 such as a ring on the inner circumferential surface of the opening 2 . A plurality of protrusions 11 are formed on the outer periphery of the upper end of the cylindrical portion 7 at appropriate intervals in the circumferential direction. On the other hand, an engagement recess 12 is formed on the inner periphery of the lower end of the cylindrical portion 7 , and a support member 13 made of a gas permeable member fitted into the engagement recess 12 allows the drying inside the container body 1 to be kept inside the closing lid 5 . A storage chamber 14 for processing materials is formed in which processing such as deoxidation, creating an antiseptic atmosphere using alcohol, etc. is performed. As the gas permeable member, it is possible to use a net, a perforated plate, a gas permeable sheet, a non-woven fabric, or any of the above-mentioned materials treated to be water repellent and rendered liquid impermeable. Further, the housing chamber 14 accommodates the detected object in a processed state that changes color depending on humidity and oxygen concentration together with the processing material, and the closing lid 5 is made of a transparent material so that the object can be viewed from the outside. There is. The locking lid 6 has a threaded portion 15 on the lower inner periphery that is screwed into the screw 3 of the opening 2, and an engagement portion 15 on the upper end that engages with the upper end outer periphery of the closing lid 5 from the outside of the container body 1. A collar 16 is provided to protrude inward in the radial direction, and the engagement collar 1
6 has an opening 17 inside. Further, a thick wall portion 18 is provided between the threaded portion 15 and the engagement collar 16 of the locking lid 6, that is, at the deep inner circumference, and the thick wall portion 18 has the protrusion adjacent to the engagement collar 16. an annular recess 19 into which the projection 11 is rotatably fitted and engaged; and a projection passage groove 20 through which the projection 11 is introduced into the annular recess 19 from the threaded portion 15 side.
is provided.

In the above configuration, when closing the opening 2 of the container body 1, the processing material and the detection object are stored in the storage chamber 14 of the closing lid 5, and then the closing lid 5 is closed with the support member 13, and the closing lid 5 is closed with the locking lid. By inserting the protrusion 11 into the annular recess 19 and rotating the protrusion 11 while pressing it into the inner part of the protrusion 6, the protrusion 11 passes through the protrusion passage groove 20 and engages with the annular recess 19, and the two are combined as the lid 4. This lid 4,
When the locking lid 6 is fitted onto the opening 2 and rotated, the locking lid 6 is screwed into the screw 3 and screwed forward, and the elastic sealing material 10 on the outer periphery of the closing lid 5 first engages with the open end of the opening 2. Due to the fitting friction, the closing lid 5 stops rotating, and only the locking lid 6 rotates. As the locking lid 6 is rotated and screwed forward, the closing lid 5 does not rotate and opens into the opening 2.
The elastic sealing material 10 is compressed on the inner periphery of the opening 2 to ensure a predetermined seal, and the interior of the container body 1 is sealed to the outside and treated with a treatment material. This processing state can be confirmed by observing the detection object inside the transparent closing lid 5 through the opening 17 of the locking lid 6. When opening the container, when the locking lid 6 is rotated in the unscrewed direction, the locking lid 6 is screwed out without rotating, and as the locking lid 6 is screwed out, the protrusion 11 of the closing lid 5 is screwed out. Since it engages with the side wall of the annular recess 19, the opening 2 remains stationary.
extracted from. In this case, the protrusion 11 has an annular recess 1
Although it passes through the opening of the protrusion passing groove 20 in the side wall 9, it only occurs at the moment of rotation, and the amount of screwing out of the locking lid 6 at that moment is equal to zero, so it does not interfere with the pulling out operation of the closing lid 5. There is no. In this way, the locking lid 6 and the closing lid 5 can be screwed out as one body from the opening 2 and opened.

Note that the protrusion 11 and the annular recess 19 may be provided on either the locking lid 6 or the closing lid 5.
The mounting structure can be changed arbitrarily.

According to the airtight container of the present invention, as is clear from the above description, the elastic sealing material on the outer periphery of the cylindrical portion of the closing lid is compressed on the inner periphery of the opening of the container body, thereby completely sealing the inside of the container body. In addition, by rotating the locking lid, it can be press-fitted into the inner circumference of the opening of the container body without rotating the closing lid.
Since it can be pulled out, it can be opened and closed very easily.Furthermore, by viewing the processing material storage chamber through the annular locking lid and transparent closing lid, the state of the processing material or the atmosphere inside the container can be known, and the atmosphere inside the container can be checked. The status can be monitored from the outside.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view, FIG. 2 is a sectional view taken along the line -- in FIG. 1, and FIG. 3 is a view taken along the - arrow in FIG. 1. 1... Container body, 2... Opening, 3... Screw,
4... Lid, 5... Closing lid, 6... Locking lid, 7... Cylindrical part, 8... Closing plate part, 9... Annular groove, 10... Elastic sealing material, 11... Protrusion, 12...Engagement recess,
14... Storage chamber, 15... Threaded portion, 16... Engaging collar, 17... Opening, 19... Annular recess, 20...
Protrusion passage groove.

Claims (1)

[Scope of utility model registration request] It has a container body, a cylindrical part that fits into the inner periphery of the opening of the container body and has an elastic sealing material fitted in an annular groove formed on the outer periphery of the cylindrical part, and a closing plate part that closes the opening of the cylindrical part. comprising a closing lid made of a transparent material and having a storage chamber for a processing material formed therein, and an annular locking lid that is screwed into the opening of the container body and engaged with the outer circumference of the upper end of the closing lid, An airtight container characterized in that the closing lid and the locking lid are coupled to be relatively rotatable.