JPH07237647A - Moistureproof container - Google Patents

Abstract

PURPOSE:To facilitate the removal of a cap without impairing air tightness, in a moistureproof container having the soft synthetic resin cap in which a fitting cylinder at its lower end is airtightly fitted on the periphery of a large- diameter part at the upper end of a container body, and an engagement projection made laterally on the internal surface of the lower half of the fitting cylinder is engaged with the lower surface of a downward level-difference part at the lower end of the large-diameter part. CONSTITUTION:A pressing part 12 is formed so that the part of a fitting cylinder 10 between the parts where engagement projections 11 are formed can be pushed inward. The fitting cylinder 10 in the part where each engagement projection 11 is formed moves outward elastically by the inward pressing of the pressing part 12, so that a cap 3 is easily taken off.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a moisture-proof container.

[0002]

2. Description of the Related Art As a moisture-proof container, as shown in FIG. 4, a container body 2 in which the upper part of a cylindrical body 4 standing upright from the peripheral edge of a bottom wall is formed into a large outer diameter portion 6 via a downward step portion 5, The lower part of the peripheral wall 8 hanging down from the outer circumference of the top wall 7 is expanded outwardly so that the outer circumference of the lower surface of the expanding part 9 is brought into pressure contact with the upper end surface of the large outer diameter part of the container body, and is drooped from the outer circumference of the expanding part. The upper half of the fitting cylinder 10 is airtightly fitted to the outer surface of the large outer diameter portion 6, and the engaging projections 11 are provided at a plurality of positions on the inner surface of the upper end of the lower half of the fitting cylinder. There is a cap 6 which is made of soft synthetic resin and which is engaged with the lower surface of the downward step 5 of the lower end of the diameter portion 6.

[0003]

In the above-mentioned container, when the cap is removed and the contents are weighed and the cap is again fitted to the container body after use, the inner lid is not required and the hermeticity of the container body is improved. It is convenient because it can maintain good moisture resistance.

However, the above-mentioned conventional device has a drawback that it is difficult to remove the cap. In the conventional container described above, the outer circumference of the lower surface of the expanded portion 9 is pressed against the upper end surface of the large outer diameter portion 6 of the container body, and the upper half of the fitting cylinder 10 is hermetically fitted to the outer surface of the large outer diameter portion 6 of the container body. Moreover, the engaging projection 11 is provided with the downward step 5
Since the cap is made of a soft synthetic resin, it is difficult to remove the cap because the cap is made of soft synthetic resin.

The present invention proposes a container which can easily remove the cap from the above-mentioned conventional container and has excellent moisture resistance as in the conventional case.

Further, the cap can be formed by integral molding of synthetic resin, and the conventional manufacturing is simple, and it proposes a container which can be easily manufactured by changing a part of the conventional container.

Further, it proposes a container which is extremely convenient to handle.

[0008]

In order to solve the above-mentioned problems, the container of the present invention has a large outer diameter portion 6 at the upper portion of a cylindrical body portion 4 standing upright from the peripheral edge of the bottom wall via a downward step portion 5. The container body 2 and the lower part of the peripheral wall 8 hanging down from the outer circumference of the top wall 7 are expanded outwardly so that the outer periphery of the lower surface of the expanded portion 9 is pressed against the upper end surface of the large outer diameter part of the container body and expanded. The upper half of the fitting cylinder 10 hanging down from the outer periphery of the opening is airtightly fitted to the outer surface of the large outer diameter portion 6, and the engaging protrusions are provided at a plurality of positions on the inner surface of the upper end of the lower half of the fitting cylinder. A moisture-proof container comprising a measuring and synthetic cap 3 made of a soft synthetic resin, in which the strip 11 is engaged with the lower surface of the downward step 5 at the lower end of the large outer diameter portion 6, and between the engaging projections 11 forming parts. The fitting cylinder 10 portion is formed as a pressing portion 12 capable of being pushed inward, and the pressing portion 12 has an inner surface upper end portion which is smaller than the container large outer diameter portion 6. Vertical wall which fits tightly to the upper end
13 and the lower part of the inner surface is formed as a tapered surface 14 extending downward from the lower end edge of the hanging wall surface 13 and spreading outwardly, and the outer surface thereof protrudes from the outer surface of the fitting cylinder 10 at the engagement ridge forming portion. It was formed.

[0009]

Operation: For example, when the container body 2 is held by the left hand and the center portion of the outer surface of each pressing portion 12 is pushed inward by each finger of the right hand, each pressing portion is pressed.
Both side parts of 12 bulge outward, and accordingly, each engaging ridge
The fitting cylinder 10 at the forming portion 11 spreads outward, and the engaging projection 11 of the cap 3 easily comes off the downward step 5 of the container body 2.
Then, the cap 3 can be removed from the container by pulling it up.

Further, in the case of a container having a large diameter,
One engaging protrusion 11 Pushes the pressing portions 12 on both sides to disengage the engaging protrusion 11 between them, and then remove the other engaging protrusion 11 to easily remove the cap 3. it can.

Further, by pushing up a part of the lower surface of the pressing portion 12 upward, the cap 3 can be more easily than the conventional container.
Can be removed.

When mounting the cap 3, the cap 3 is pushed in from above to forcibly engage the engaging projections 11 with the large outer diameter portion 6.
Can be carried out by engaging with the lower surface of the step portion 5 facing downward. At this time, the outer periphery of the lower surface of the expanding portion 9 is pressed against the upper end surface of the large outer diameter portion 6 of the container body, and the upper half portion of the fitting cylinder 10 at the engaging ridge forming portion and the vertical wall surface 13 of the pressing portion 12 are large outside. The outer surface of the diametrical portion 6 is airtightly fitted, and the moisture contained in the container body 2 can be effectively prevented.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. The container 1 of the present invention includes a container body 2 and a cap 3.

The container body 2 has a cylindrical body 4 standing upright from the peripheral edge of the bottom wall, and an upper portion of the cylindrical body 4 having a downward step 5 as a large outer diameter portion 6. The body 4 is made of paper, synthetic resin or the like, and the large outer diameter portion 6 is made of metal, synthetic resin or the like.

The cap 3 is an integrally molded product made of a soft synthetic resin such as polyethylene, and the lower part of the peripheral wall 8 hanging down from the outer periphery of the top wall 7 is expanded downward and the outer periphery of the lower surface of the expanded part 9 is formed as described above. While making pressure contact with the upper end surface of the large outer diameter part of the container body,
The upper half of the fitting cylinder 10 hanging down from the outer circumference of the expanded portion is airtightly fitted to the outer surface of the large outer diameter portion 6, and the fitting cylinder 10 is provided horizontally at a plurality of locations on the upper end inner surface of the lower half of the fitting cylinder. The projecting ridge 11 is engaged with the lower surface of the downward step 5 of the lower end of the large outer diameter portion 6 so as to be detachably attached to the container body 2.

In the present invention, in the cap 3, the fitting cylinder 10 portion between the engaging projection 11 forming portions is formed as the pressing portion 12. The pressing portion 12 is configured such that the upper end of the inner surface thereof is formed as a hanging wall surface 13 that is airtightly fitted to at least the upper portion of the large outer diameter portion 6 of the container body, and the lower portion of the inner surface is extended from the lower end edge of the hanging wall surface 13. It is configured as a tapered surface 14 that spreads downward and outward. The hanging wall surface 13 is airtightly fitted to the outer surface of the large outer diameter portion 6 in order to maintain good airtightness inside the container body 2 when the cap 3 is attached to the container body 2. A better airtightness can be maintained by having a vertical width that fits over the entire outer surface of the large outer diameter portion 6, but at least
If there is a vertical width that fits to the upper end of the outer surface of the large outer diameter portion 6, the airtightness is sufficiently maintained, together with the fact that the outer circumference of the lower surface of the expanding portion 9 is in pressure contact with the upper end surface of the large outer diameter portion 6. be able to.

Further, the outer surface of the pressing portion 12 is formed so as to protrude from the outer surface of the fitting cylinder 10 at the engaging ridge forming portion. If not configured in this way, the thickness of the pressing portion 12 (especially the thickness of the lower edge portion) becomes extremely thin due to the presence of the tapered portion 14, and as a result, the pressing portion 12
12 When the outer surface is pushed in, the pressing portion 12 is totally recessed, and it is difficult for the both side portions to bulge outward.
There is a risk that 11 will not move outwards satisfactorily.

By pushing inward the central portion of the outer surface of each pressing portion 12 in the horizontal direction, the pressing portion 12 has an arcuate shape in plan view, so that both ends thereof are elastically bulged outward. It is deformed, and along with it, the fitting cylinder 10 at the site where the engaging protrusion 11 is formed.
The portion is elastically deformed so that the lower end edge thereof is expanded outward, so that the engaging projections 11 are easily separated from the downward step 5, and the cap 3 can be easily removed.

In this embodiment, the size of the container is set so that it can be grasped by one hand with the fingers spread out, and the engaging protrusions are provided.
11 are provided at three locations at equal intervals in the circumferential direction.
The number of 11 is not limited to three and may be two or four or more.

However, if the number of engaging ridges 11 is increased too much, the lateral width of each pressing portion 12 becomes narrower, and the outward bulging width of both side parts when each pressing portion 12 is pushed in becomes smaller. The cap may be so easily removed that there is a risk that it will be difficult to push each pressing portion 12 in one hand with one hand, so about three locations are most preferable.

Reference numeral 15 in the drawing denotes a measuring cylinder.

[0022]

As described above, in the container of the present invention, the fitting cylinder 10 between the engaging projections 11 is formed as the pressing portion 12 capable of being pushed inward. The upper end of the inner surface is formed as a hanging wall surface 13 that is airtightly fitted to at least the upper end portion of the large outer diameter portion 6 of the container body, and the lower part of the inner surface extends downward from the lower edge of the hanging wall surface 13 and spreads outward. Since it is formed as a curved surface 14 and the outer surface thereof is formed so as to project from the outer surface of the fitting cylinder 10 at the engagement protrusion forming portion, by pressing each pressing portion 12 inward, the engagement protrusion between them is formed. 11
The lower end edge of the fitting cylinder 10 at the forming part is displaced outwards, and the engaging projection
The engagement with the downward step portion 11 of 11 is very easily disengaged, and therefore, the removal of the cap is extremely easy. In addition, when the cap 3 is attached, the outer periphery of the lower surface of the expanded portion 9 is pressed against the upper end surface of the large outer diameter portion 6 of the container body, and the inner surface of the fitting cylinder 10 at the portion where the engaging protrusion 11 is formed and the vertical wall surface of the pressing portion 12. Since 13 is airtightly fitted to the outer surface of the large outer diameter portion 6 of the container body, it also has good airtightness.

Further, in the container of the present invention, if the diameter is appropriately selected so that it can be grasped by one hand with the fingers spread, for example, the container body 2 is held by the left hand and each finger of the right hand is placed on the outer surface of each pressing portion 12. The cap 3 can be easily removed by attaching the cap 3 and pushing it inward at the same time as pulling it up. On the other hand, when the cap is attached, the cap 3 can be pushed and fitted from above as in the conventional case, so that the handling is very convenient.

Further, the container of the present invention can be manufactured easily because the cap can be formed by integral molding of synthetic resin and can be obtained by a simple structural change only by partially deforming the cap of the conventional container of this type. You can do it.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part showing an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part of the embodiment.

FIG. 3 is a bottom view showing the cap of the embodiment.

FIG. 4 is a partial cutaway side view showing a conventional container.

[Explanation of symbols]

2 ... Container body, 3 ... Cap, 4 ... Body part, 5 ... Downward step part, 6 ... Large outer diameter part, 7 ... Top wall, 8 ... Peripheral wall, 9 ... Expansion part,
10 ... Fitting cylinder, 11 ... Engaging ridge, 12 ... Pressing part, 13 ... Vertical wall surface,
14 ... Tapered surface

Claims (1)

[Claims] 1. A container body 2 in which an upper part of a cylindrical body 4 standing upright from a peripheral edge of a bottom wall has a large outer diameter part 6 through a downward step 5, and a lower part of a peripheral wall 8 hanging down from an outer periphery of a top wall 7. Is expanded downwardly to bring the outer circumference of the lower surface of the expanded portion 9 into pressure contact with the upper end surface of the large outer diameter portion of the container body, and the upper half of the fitting cylinder 10 hanging from the expanded outer circumference. Engaging projections 11 are airtightly fitted to the outer surface of the large outer diameter portion 6 and are provided at a plurality of locations on the inner surface of the upper end of the lower half of the fitting cylinder so as to extend downwardly toward the lower end portion 5 of the large outer diameter portion 6. In a moisture-proof container consisting of a soft synthetic resin weighing / combining cap 3 engaged with the lower surface, a pressing portion 12 capable of pushing inward the fitting cylinder 10 portion between the engaging projections 11 molding portions. The pressing portion 12 is a vertical wall surface whose inner surface upper end portion is airtightly fitted to at least the upper end portion of the container body large outer diameter portion 6.
13 and the lower part of the inner surface is formed as a tapered surface 14 extending downward from the lower end edge of the hanging wall surface 13 and spreading outwardly, and the outer surface thereof protrudes from the outer surface of the fitting cylinder 10 at the engagement ridge forming portion. A moisture-proof container characterized by being formed by allowing it to be formed.