JPS6016503Y2 - can - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a can consisting of a can body with a bottom plate wrapped around the bottom surface of the can body and a lid body that covers the top surface of the opening of the can body. This is suitable for application to relatively large cans for which strong demands are made.

[Conventional technology]

Firstly, in relatively tall cans, the can body 3 of the can body 1 is formed into a tapered shape with a downward convergence, so that the empty can bodies 1 can be fitted in multiple stages vertically without taking up space. It is known that it can be done.

Secondly, for the purpose of reinforcing the opening periphery of the can body 3, it is widely known that a circumferential protrusion 5 is integrally formed on the outer periphery of the upper end of the can body 3.

Thirdly, it is known that in food containers (generally bottle containers, etc.), the opening top surface of the container body is sealed with a sealing material such as a plastic film or paper, and a lid is placed thereon.

[Problem that the invention attempts to solve]

Based on the above-mentioned first and second conventional techniques, it is easy to think of forming the can body 3 in a downwardly tapered shape and forming the circumferential protrusion 5 protrudingly on the outer periphery of the upper end of the can body 3. I can say that it can be done.

Although I am not aware of the fact that the can bodies 1 are fitted into each other in multiple stages, there is one shown in Japanese Utility Model Publication No. 34-9268 that adopts the above-mentioned configuration.

However, if the entire can body 3 is simply formed into a tapered shape from top to bottom, when the empty can bodies 1 are superposed together, they will fit closely together and the upper can body 1 will overlap the lower can body. It cannot be easily removed from the

The interior surface of the lower can body 1, which has been treated with anti-corrosion treatment, is damaged.

If the upper edge of the can body 3 is tapered,
The lid body 2 cannot be tightly fitted.

Additionally, while it is meaningful to glue and fix a sealant to the top of the opening of the container body for relatively small food containers, it is difficult and troublesome to glue this type of sealant to relatively large cans. Also, it is troublesome to break the sealing material and dispense the contents.

Therefore, the present invention allows the empty can bodies 1 to be vertically fitted together in multiple stages.

However, the purpose is to prevent them from closely fitting into each other when stacked.

Another object of the present invention is that the lid 2 can be tightly fitted to the outer periphery of the upper end of the can body 3, and the fitting gap between the upper peripheral wall portion 3a of the can body 3 and the outer peripheral flange 2a of the lid 2 can be further reduced. The purpose is to securely fill the hole and improve sealing performance.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a can body 1 having a bottom plate 4 wrapped around the lower surface of the can body 3, and a flange 2 having a vertical wall on the outer periphery.
It has a basic configuration consisting of a lid body 2 having a shape.

A circumferential protrusion 5 is integrally bulged on the outer periphery of the upper end of the can body 3, and the circumferential wall portion 3a of the can body 3 above the circumferential protrusion 5 is formed into a vertical wall shape. The lower peripheral wall portion 3b is formed into a downwardly tapered shape.

An annular small protrusion 6 having a smaller protrusion amount than the circumferential protrusion 5 is formed in a circumferential manner at the upper and lower intermediate portions of the outer peripheral surface of the upper circumferential wall portion 3a of the can body 3.

A moisture-proof paper 7 is attached to the can body 3 so as to cover the upper surface of the opening of the can body 3 and has a downwardly bent portion 7a on the outer periphery.

Thus, the lid 2 is attached to the outer peripheral surface of the upper peripheral wall portion 3a of the can body 3.
In the state where the outer peripheral flange 2a is fitted, the outer periphery flange 2a is fitted.
The outer circumferential bent portion 7a of the moisture-proof paper 7 is held between the small protruding strip 6 and the small protruding strip 6.

〔Example〕

In FIG. 1, 1 is a can body, and 2 is a lid body that covers the top surface of the opening of the can body 1.

The can body 1 is formed by winding and joining a bottom plate 4 to the lower surface of a cylindrical can body 3, and a flange 2a connected downward from the outer periphery of the lid body 2 is attached to the outer peripheral surface of the upper end of the can body 3 from above. Fit together.

A circumferential protrusion 5 having a semicircular cross section is integrally bulged on the outer periphery of the upper end of the can body 3, and the circumferential wall portion 3a of the can body 3 above the protrusion 5 is formed into a vertical wall shape. The peripheral wall portion 3b below the protrusion 5 is formed into a downwardly tapered shape.

Then, a lid body 2 is provided corresponding to the upper peripheral wall portion 3a of the can body 3.
The outer peripheral flange 2a is also formed in the shape of a vertical wall.

On the outer circumferential surface of this upper peripheral wall portion 3a, an annular small protrusion 6 having a smaller protrusion amount than the circumferential protrusion 5 is formed in a circumferential manner at the upper and lower intermediate portions.

Further, a moisture-proof paper 7 having a downwardly bent portion 7a on the outer periphery is separately provided.

In such a case, when the empty can bodies 1 are stacked and fitted in multiple stages as shown in FIG. 2 during transportation or storage, the circumferential protrusion 5 of the upper can body 1 will align with the can body 3 of the lower can body 1. The overlapping depth of the can bodies is regulated by contacting the upper edge, and a gap is created between the lower circumferential wall portion 3b of the upper can body 1 and the upper circumferential wall portion 3a of the lower can body 1, and the upper and lower The can bodies 3, 3 do not fit closely together.

Therefore, each can body 1 can be easily removed upwardly in order from the top.

Further, as shown in FIG. 3, when putting the lid 2 on after filling the can body 1, the vertical wall-shaped outer peripheral flange 2a of the lid 2 is placed on the upper side of the vertical wall of the can body 3. It is tightly fitted by simply inserting it into the outer peripheral surface of the peripheral wall portion 3a from above.

Moreover, when the lid is closed, the outer circumferential bent portion 7a of the moisture-proof paper 7 is interposed between the vertical flange 2a of the lid 2 and the vertical upper peripheral wall portion 3a of the can body 3, so that the small protrusion 6 and the flange 2a, which further enhances the sealing performance and effectively prevents the lid 2 from rattling or accidentally coming off.

[Effect of idea]

As explained above, according to the present invention, the peripheral wall portion 3b of the can body 3 below the circumferential protrusion 5 is formed into a downwardly tapered shape, and the peripheral wall portion 3a above the circumferential protrusion 5 is formed into a tapered shape.
Since the can bodies 1 are formed into vertical wall shapes, empty can bodies 1 can be stacked one on top of the other in multiple tiers to save space during transportation or storage. is not a tight fit.

Therefore, the can bodies 1 can be easily stacked and then removed and removed, and the inner circumferential surface of the can body of the lower can body 1 is less likely to be scratched during heavy fitting.

Moreover, the vertical wall-shaped outer peripheral flange 2a of the lid body 2 can be tightly fitted to the outer peripheral surface of the upper peripheral wall portion 3a of the can body 1, and the outer peripheral bent portion of the moisture-proof paper 7 is provided between both 2a and 3a. 7a is interposed and is held by the small protrusion 6, so that good sealing performance can be ensured.

Further, the upper circumferential wall portion 3a of the can body 3 and the outer circumferential flange portion 2 of the lid body 2
Since the fitting gap between the can body 3 and the can body 3 can be well absorbed by the outer circumferential bent portion 7a of the moisture-proof paper 7 interposed between the two, it may become difficult to fit the lid body 2 into the can body 3, or the lid body may become loose due to a loose fit. 2 can be prevented from becoming easily removed.

[Brief explanation of drawings]

The drawings show a specific example of the present invention, and Fig. 1 is an overall perspective view showing the can body and lid, which are the constituent members of the present invention, and Fig. 2 shows a state in which the can bodies are stacked in multiple stages. FIG. 3 is a vertical cross-sectional view of the main parts in a state where the lid is closed to the can body. 1... Can body, 2... Lid body, 2a...
...Outer periphery flange of lid body, 3...Can body of can body, 3
a... Upper peripheral wall portion of can body, 3b...
Lower peripheral wall portion of can body, 4...Bottom plate, 5...
... Circumferential protrusion, 6... Small protrusion, 7...
Moisture-proof paper, 7a...Outer folded part of moisture-proof paper.

Claims (1)

[Scope of utility model registration request] It consists of a can body 1 with a bottom plate 4 wrapped around the lower surface of the can body 3, and a lid body 2 having a vertical wall-like flange 2a on the outer periphery, and a circumferential protrusion 5 is integrated on the outer periphery of the upper end of the can body 3. The can body 3 has a circumferential wall portion 3a above the circumferential protrusion 5 in a vertical wall shape, and a circumferential wall portion 3b below the circumferential protrusion 5 in a tapered shape. A small annular protrusion 6 having a smaller protrusion than the circumferential protrusion 5 is formed in a circumferential manner at the upper and lower intermediate portions of the outer peripheral surface of the upper circumferential wall portion 3a of the can body 3. The can body 3 is provided with a moisture-proof paper 7 which is attached to cover the upper surface of the opening of the can body 3 and has a downwardly bent portion 7a on the outer periphery.
In a state where the outer circumferential flange 2a of the lid body 2 is fitted to the outer circumferential surface of the upper circumferential wall portion 3a, the outer circumferential flange 2a and the small protrusion 6
A can characterized in that an outer circumferential bent part 7a of a moisture-proof paper 7 is bonded between the can.