JPH02180160A - Sealed package vessel - Google Patents

Abstract

PURPOSE:To prevent erroneous use by a method wherein a package comprises an opening part located at a position having a larger diameter than a closing part while the shape of the opening part is made in a form wherein a shape that fingers are to be placed at the time of opening operation is easy to be applied with operating force. CONSTITUTION:A direction of rotation at the time of opening a lid 20 is counterclockwise, and a part 26 for opening is formed so that a wall 27 to be applied with operating force with fingers placed at the time of closing the lid 20 is formed perpendicular, while on its opposite side a horizontal bottom extends to a tilted face of a periphery 25 to be opened. Therefore, when the lid 20 is rotated to a direction to close it, sufficient force can be applied with fingers placed on the wall 27 of the part 26 for opening, but if it is to be rotated in a reverse direction, the fingers cannot be placed on the part 26 for opening but will slip off so that force cannot be applied there. When the lid 20 is to be screwed into an opening 11 of a package 10 and closed, a packing 30 for sealing is interposed between a rear face of the lid 20 and a tip of the opening 11.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a sealed container used for pickle containers, etc.
Specifically, the present invention relates to an airtight container in which a lid that closes an opening of a container body is configured to open and close the opening by a rotation operation such as screwing.

[Conventional technology]

As an airtight container, for example, there is a container for storing pickling agents such as rice bran or pickled vegetables and pickling materials such as vegetables in a sealed state, that is, a pickle container.

This pickle container is used to promote the fermentation of pickles by holding the above-mentioned liquid and solid contents for a certain period of time, or by stirring the whole container by rotating it. It is used to produce pickles.

9 and 10 show 1. The structure of a conventional pickle container is shown. The container body 1 is integrally molded from synthetic resin or the like into a substantially cylindrical drum shape, and is provided with an opening 1a projecting in a cylindrical shape on one side surface. A male thread is formed on the outer periphery of the opening 1a. The lid 2 to be combined with the container body 1 is made of synthetic resin or the like and is formed into a substantially disk shape, and has a female thread formed on the bottom side that corresponds to the opening 1a of the container body 1, and a lid 2 on the top side that can be opened and closed. A plurality of protrusions 2a are provided in the circumferential direction, which serve as operation parts on which to place a finger.

After storing the above-mentioned pickle ingredients in the container body 1 as described above, the lid 2 is rotated and screwed into the opening 1a, and the opening 1a is sealed with the lid 2. Note that the opening 1a and the lid 2
An annular gasket 3 for leak prevention is inserted between the back surface of the lid 2 and the opening 1a, and the gasket 3 is compressed and deformed by strongly screwing the lid 2 into the opening 1a. It reliably prevents any gaps between the two and prevents leakage even if the pressure of the liquid contained inside is applied.

This so-called screw-in opening/closing structure, in which the container is opened and closed by rotating the lid and screwing it into the opening, can securely seal the container by simply rotating the lid with a relatively small force. This is preferable as an opening/closing structure for a container lid.

[Problem to be solved by the invention]

However, airtight containers whose lids are screwed in and opened by rotating the lid often have the problem that the lids are hard and difficult to open.

In the case of a screw-in lid, the operating force required to close and open the lid differs due to the following reasons.

First, during the opening/closing operation, the resistance force that acts between the container body 1 and the lid 2 is mainly due to the sliding friction resistance at the threaded part and the lid 2.
It can be said that this is the sliding friction resistance that occurs between the packing 3 and the packing 3 which is being compressed.

In the case of the above-mentioned pickle container, for example, after removing the finished pickles from the container body 1, new pickle ingredients are put in,
An operation such as screwing the lid 2 into the opening 1a with the gasket 3 in between is performed. At this time, the lid 2, gasket 3, etc. that have been removed are often attached to the opening 1a after removing the adhering rice bran or washing with water. Therefore, since slippery water is present on the sliding surfaces of the lid 2 and the gasket 3, the frictional resistance described above is reduced, and the operating force required to rotate the lid 2 is also small. However, in a pickle container that has been left for a certain period of time until the pickles are ready, the moisture on the sliding surfaces of the lid, 2, and gasket 3 evaporates and becomes dry, so the coefficient of friction on the sliding surfaces increases. ,
A large operating force is required to rotate M2.

In addition to the effects of adhered water as described above, when the lid 2 is closed, the lid 2 is rotated and tightened, so kinetic frictional force acts, whereas when the lid 2 is opened, Static frictional force acts because the lid 2 in a stationary state is rotated, but static frictional force is much larger than dynamic frictional force, so a large force is required to open the lid 2.
Alternatively, the difference between the internal pressure and external pressure applied to the container may also have an effect.

In any case, with screw-type airtight containers, opening the lid requires greater operating force than closing it, so the lid, which was relatively easy to close, becomes stiff and difficult to open. Therefore, improvements are desired.

In addition, it is possible to close the lid with a light force in advance so that only a small amount of force is required when opening the lid.
If this happens, the amount of compression of the gasket by the lid will be reduced, resulting in poor sealing performance, resulting in problems such as leakage of contents such as rice bran, and the ability to function as a sealed container. .

Therefore, an object of this invention is to solve the problem of the lid becoming stiff and difficult to open by reducing the operating force required to open the lid in the above-mentioned airtight container having a structure in which the lid is opened and closed by rotating the lid. However, it is an object of the present invention to provide a user-friendly airtight container that can maintain sufficient airtightness when the lid is closed.

[Means to solve the problem]

The airtight container of the present invention, which solves the above problems, is an airtight container equipped with a lid that freely opens and closes the opening of the container body by rotational operation, and when the lid is opened and closed, the user can touch the lid with a finger (fJ), & The rotary operation part that is already operated is the close operation part,
It consists of an opening operation part that is provided at a position with a larger outer diameter than the closing operation part, and the shape of the opening operation part is such that the shape of the side on which the finger touches during the opening operation is such that it is easy to apply operating force. , and are formed asymmetrically so that the shape on the opposite side forms a shape to which it is difficult to apply an operating force.

[For production]

The operating force applied to the rotation operating portion of the lid acts as a torque centered on the lid. Therefore, the larger the outer diameter of the position at which the lid is operated by hand, the greater the torque will be applied.

In this invention, the outer diameter position of the opening operation part is larger than the outer diameter position of the closing operation part among the rotation operation parts of the lid.
Even if the same operating force is applied, a larger torque is applied during the opening operation than during the closing operation. In other words, it is possible to apply a greater force when opening the lid than when closing it, and even a hard lid that is difficult to open can be opened easily.

In this way, if you use the close operation part and the open operation part properly, it won't be difficult to open the lid, but if you make a mistake and use the open operation part when closing the lid, you will end up with a lot of force. I work and get squeezed tightly. In this case, there may be cases where the lid cannot be opened by operating the same opening operation section.

In rotary operation type cups, the lid is rotated in opposite directions for opening and closing operations, so the direction in which force is applied by placing your finger on the rotary operation part is reversed, but in this invention, the opening operation part The shape of the opening operation part is asymmetrical, so even if you try to use the opening operation part for a closing operation, the shape of the side where your finger hits during the closing operation is such that it is difficult to apply operating force. If you check the shape, you will not make any mistakes when using it, and even if you accidentally use the open operation part during the closing operation, a strong force will not be applied. It is designed to be

〔Example〕

Next, the present invention will be explained in detail below with reference to the drawings showing examples.

In the embodiment shown in FIGS. 1 to 5, the container main body lO has a drum shape integrally molded from synthetic resin or the like, like a conventional normal closed container, and has an opening protruding from the center of one side. 11, and a right-handed male threaded portion 12 having a normal threaded shape is formed on the outer periphery of the opening 11.

The basic shape of the lid 20 is also the same as that of a conventional normal airtight container, and the lower surface 111 of the lid 20, which is approximately disc-shaped, has a threaded hole that corresponds to the male threaded portion 12 of the container body IO. A portion 21 is formed, and an annular rib 22 for holding a gasket, which will be described later, protrudes from the inner side of the female thread portion 21. The upper surface side of the lid 20 has a two-step shape, and a plate-like closing operation part 24 protruding radially from a cylindrical base 23 is provided at one location in the circumferential direction 4 (17i) in the upper part. The lower part of the lid 20 has a peripheral edge part 25 that gently expands diagonally downward, and four opening operation parts 26 are formed on this peripheral edge part 25 at four positions in the circumferential direction. .The formation positions of the closing operation part 24 and the opening operation part 26 are as follows.
When compared with FIG. 4 showing the planar state of the lid 20, the radius R1 from the opening operation part 26 to the center of the lid 20 is larger than that of the closing operation part 24.
It is longer than the radius R2 from to the center of the lid 20.

In FIG. 4 showing the planar shape of the M2O, the direction of rotation when opening the M2O is counterclockwise (X direction) in the figure; The wall surface 27 on the side to which the operating force P is applied is formed vertically,
On the opposite side, the horizontal bottom surface is directly connected to the inclined surface of the peripheral edge portion 25 and is open. Therefore, when rotating the lid 20 in the closing direction (X direction), the opening operation section 2
You can apply a strong enough force by placing your finger on the wall surface 27 of 6, but if you try to rotate it in the opposite direction (X direction), you will not be able to place your finger on the opening operation part 26 and it will slip. It is now impossible to apply force.

When the lid 20 is screwed into the opening 11 of the container body 10 and closed, a sealing gasket 30 is sandwiched between the back surface of the lid 20 and the tip of the opening 11. Seal packing 3
0 is similar to those used in ordinary closed containers and the like, and is formed in an annular shape from a material with excellent elasticity such as rubber.

When the lid 20 is screwed into the opening 11, the sealing gasket 30 is inserted and held on the outer periphery of the annular rib 22 on the back surface of the M2O, and the sealing gasket 30 is inserted between the tip of the opening 11 and the back surface of the M2O. By being compressed and tightened, the sealing performance between the lid 20 and the opening 11 is improved.

To explain in detail how to operate the airtight container of the above-described embodiment, after putting a suitable object into the container body 10, R20 is closed. In Figure 4, turn R20 clockwise (Y direction)
Since the lid 20 closes when the lid 20 is rotated, a finger is placed on the closing operation portion 24 of the lid 20, and an operating force P is applied to rotate the lid 20. Lid 2
0, it is necessary to rotate the lid 20 counterclockwise (X direction). At this time, place your finger on the opening operation part 26 of the lid 20 and apply operating force in the opposite direction to the closing operation described above. Add P and rotate. In other words, during the closing operation and opening operation,
The rotary operation section on which the operating force P is applied by applying the finger is changed.

Comparing the torques applied during the closing operation and the opening operation, if the operating force P applied to each operating portion 24, 26 is the same, the resulting torques and their ratios are as follows.

T, = 2R, P, T, = 2R1P T1/Tt = R1/R8 T,...Torque T during the opening operation,...Torque during the closing operation, that is, even if the operating force P applied to the lid 20 is the same. , Rt>
Since Rt, the torque T1 during the opening operation is the radius ratio R, /R compared to the torque T during the closing operation.

If R is sufficiently larger than R2, it becomes possible to generate the large torque required during the opening operation.

Next, FIGS. 6 to 8 show embodiments in which the structure of the operating portion of the cap 20 is different from the above-described embodiments.

Container body 10. Seal packing 30. The basic structure of the cap 20 is the same as that of the previous embodiment, and its explanation will be omitted. Among the rotary operating parts of the cap 20, the structure of the closing operating part 24 is also the same as in the previous embodiment, but the structure of the opening operating part 26 is different. That is, the lower part 25' of the two-tiered camp 20 has a vertical cylindrical shape, and a lip-shaped opening operation part 26 that projects in the shape of a scalene triangle is formed on the side surface of the cylindrical part 25'. ing. Of the two oblique sides of the opening operation section 26, the oblique side 28 on which the finger is placed during the opening operation is raised at an almost vertical angle, making it easy for the finger to get caught and apply force. On the other hand, the oblique side 29 on the opposite side is inclined at a small angle, making it difficult for th to get caught. That is, when rotating in the opening operation direction (X direction), the user hooks a finger on the oblique side 28 and rotates.

Lid 2 of the embodiment equipped with the above-mentioned triangular opening operation part 26
0 as well, the opening/closing operations are performed in exactly the same manner as in the embodiment provided with the recessed opening operation portion 26 described above, so a detailed explanation will be omitted.

Among the embodiments described above, the shape and structure of the container body 10 may be changed to the shape and structure of various ordinary closed containers depending on the purpose and purpose of use.
If the structure has the above-mentioned configuration of the opening operation section 26 and the closing operation section 24, the shape and structure of the other parts are as follows.
It can be modified to various types of lid configurations for ordinary closed containers.

The opening operation section 26 and the closing operation section 24 can be formed at two locations or at six or more locations, in addition to the four locations as in the illustrated embodiment. As described above, the shape of the opening operation part 26 can be changed to a shape other than that shown in the drawings, as long as the shape of the opening operation side and the opposite side are asymmetrical.

The shape of the closing operation part 24 includes the protrusion shape shown in the figure,
It is possible to adopt the structure of a variety of ordinary container lids, such as one with a recess formed in which a finger can be caught.

In the illustrated embodiment, the lid 20 and the threaded portion 21 of the opening 11 are
．． Although No. 12 has a right-handed structure, it can of course also be implemented with a left-handed structure. However, in this case, since the rotation direction of the opening operation and the closing operation are different, it is necessary to form the asymmetrical shape of the opening operation part 26 in the opposite way. The opening/closing structure of the lid 20 and the opening 11 can be a structure in which the lid 20 is gradually tightened by rotating the lid 20 many times like the screw-in type described above, or a structure in which the lid 20 is gradually tightened by rotating the lid 20 many times.
0 and the opening 11, and when the lid 20 is placed over the opening 11 and rotated by a certain angle, the engaging portion is engaged and fixed, and the connection between the opening 11 and the lid 20 is fixed. Various opening/closing structures can be applied as long as the lid 20 has a structure that can be opened and closed by rotating, such as a structure that can achieve sealing.

In addition to the pickle container described above, the airtight container according to the present invention can be used as an airtight container for storing, preserving, storing, or transporting liquid or solid products such as various foods. Can be done.

〔Effect of the invention〕

According to the above-described airtight container of the present invention, the outer diameter at the position where the opening operation part is provided is larger than the outer diameter at the position where the closing operation part is provided, so even if the same operating force is applied, the container cannot be closed. The opening operation section has a larger torque (IJ <) than the operation section. Therefore, it becomes easier to open the lid, which requires a larger force than when closing the lid, and it is difficult to open because it is hard. Even difficult lids can be opened easily.

Moreover, the shape of the opening operation part is asymmetrical, and even if you try to use the opening operation part during the closing operation, the shape of the side where you put your finger on it during the closing operation makes it difficult to apply operating force. Because of this, it is impossible to close the door so tightly that it cannot be opened later without applying strong force. Further, by looking at the shape of the opening operation part, it is possible to easily confirm in which direction the opening operation part should be operated, that is, whether it is for opening operation or for closing operation.

Therefore, the airtight container according to the present invention can be reliably sealed like a normal airtight container by performing the closing operation using the closing operation part, and can be reliably sealed by performing the opening operation using the opening operation part. The lid can be easily loosened without using a large operating force compared to the closing operation, and there is no problem even if the opening operation part is accidentally used for the closing operation.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a closed container according to the present invention, and FIG.
The figure is a perspective view of the rear side of the lid, Figure 3 is a sectional view of the lid when it is closed, Figure 4 is a plan view of the lid, Figure 5 shows the detailed structure of the opening operation part, and Figure 5 Figure 4 A-A enlarged cross-sectional view, No. 5
Figures (bl is an enlarged sectional view taken along the line B-B in Figure 4, Figure 6 is an exploded perspective view of another embodiment, Figure 7 is a plan view of the lid, Figure 8 is a sectional view with the lid closed, Fig. 9 is an exploded perspective view of the conventional example, and Fig. 10 is a sectional view of the cup in a closed state. 10... Container body 11... Opening 20... M
24... Close operation section 26... Open operation section 30...
Sealing pad and kin Diagram 1

Claims (1)

[Claims] 1. In an airtight container equipped with a lid that freely opens and closes the opening of the container body by a rotational operation, the rotational operation part of the lid, which is operated by placing a finger on it when opening and closing, is connected to the closing operation part and the closing operation part. It consists of an opening operation part provided at a position with a larger outer diameter than the operation part, and the shape of the opening operation part is such that the shape of the side on which the finger is applied during the opening operation is such that it is easy to apply operating force, and A closed container characterized by being asymmetrically formed so that the opposite side has a shape that makes it difficult to apply operating force.