JPS581448Y2 - Filling nozzle shape - Google Patents

Description

[Detailed description of the invention] The present invention relates to the shape of a filling nozzle, and in particular, the opening cross section of a filling nozzle suitable for filling a polygonal container with a sol or semi-gel substance such as ice cream or butter without any gaps. Concerning shape.

Conventionally, when filling a sol-like or semi-gel-like substance such as ice cream or butter into a rectangular container with a polygonal shape such as a square, a filling nozzle that is similar in shape to the polygon or circular has been used. .

However, when filling a polygonal container with such a nozzle, it is difficult to fill the corners without any gaps, which tends to create voids, and on the other hand, the sides of the container bulge outward due to the pressure of the contents. However, there was a drawback that the contents leaked out from the gap between the lid and the lid.

The purpose of the present invention is to overcome the above-mentioned conventional drawbacks, and to set the opening cross section of a nozzle for filling a sol-like or semi-gel-like content into a polygonal container with respect to each corner of the polygon. An object of the present invention is to provide a novel filling nozzle having a nozzle opening cross-sectional shape that projects more than each side.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is an explanatory view comparing the opening shape of a conventional filling nozzle and the opening shape of a filling nozzle according to the present invention for various square containers.

Column I on the left shows the plan view of the main square containers, and the middle column ■
2 shows the opening shape of the filling nozzle according to the present invention, and column (2) on the right side shows the opening shape of the conventional filling nozzle.

For example, for a rectangular container C, a filling nozzle having an opening shape similar to the container, such as the conventional C", was used.

However, the shape of the nozzle according to the present invention is as shown in C'.

Similarly A, B, D. For containers with shapes of El:, F, G, H, conventional nozzle shapes are A", B", D", E',
F”, G”.

H", whereas the nozzle shape of the present invention is A/
, B/ , D/ , E/ , F/ , G/
, H/.

Next, FIG. 2 shows an example in which the effects in the filling process when ice cream is filled into a rectangular container using the nozzle according to the present invention and a conventional nozzle are compared.

Here, using a rectangular container as an example, the process of filling the contents using a conventional shaped nozzle and the filling process using the nozzle according to the present invention are shown in comparison.

First, A of A shows the conventional shape of the nozzle, B of A shows the shape of the nozzle according to the present invention.
E. The state of filling the container with the contents during filling and capping (closing process) is shown.

That is, in the mouth, both A and B are filled with contents and have a raised center.

Figure 1 is a plan view of the mouth, and the white area indicates the empty space.

2 is a plan view showing a state in which filling of the contents has been completed, and a in the figure shows a gap formed between the container wall surface and the contents.

E is a plan view showing the state in the middle of capping the drop-lid, and the arrows indicate how the container tends to deform due to internal pressure.

At Ho A, the air tries to escape from the container, but
In this case, air may be difficult to escape from the corners of the container due to the deformation of the container, and gaps may easily form.

On the other hand, in case B, air easily escapes from the sides of the container, and the contents are filled in the corners without any gaps.

A is a plan view showing the state of the contents after capping is completed, and in A, air gaps remain in the corners;
On the other hand, the side of the container cannot withstand the internal pressure and bulges and deforms, and the contents leak out from the gap with the lid by an amount C, and this C is approximately equal to the amount b.

After the capping is completed, the container B is filled uniformly without any leakage of the contents or gaps caused by air remaining in the container.

Although the nozzle for a rectangular container has been described above, the same operation and effect can be obtained for other shapes shown in FIG. 1, such as a triangular pentagonal shape.

Furthermore, when the number of corners is large, such as H in FIG. 1, that is, a hexagon, the shape of the nozzle according to the present invention also becomes circular, as shown by H'.

FIG. 3 shows a sectional view of an embodiment of a filling nozzle for a rectangular container according to the present invention.

FIG. 4 shows a sectional view of the valve along A-AK.

FIG. 5 shows a sectional view of the nozzle portion BB.

1 is a content conduit, 2 is a valve stem, 3 is a valve, and 4 is a nozzle.

Note that the filling nozzle portion 4 is screwed onto the conduit 1 so as to be interchangeable.

According to the present invention, when filling a rectangular container with contents, more of the contents are filled in the corners rather than the sides of the container. The pressure resistance of the container is improved by averaging the stress applied to the container with l- so that the filling pressure and the pressure due to the weight of the contents are not so great, and the pressure is largely applied to the corners of the container where deformation is less likely to occur due to the structure. enhance

Also, when inserting a drop lid into a container, pressure is applied to the entire surface of the lid, so the contents tend to flow toward the side of the container where the pressure is lower, and the air that was stagnant there escapes, causing deformation of the container. It has excellent effects such as preventing the contents from leaking out from between the inner wall of the container and the lid.

[Brief explanation of the drawing]

Figure 1 is a comparative explanatory diagram of the shape of the filling nozzle opening according to the present invention for various square containers and the conventional one, and Figure 2 is a comparison diagram of the shapes of the filling nozzle according to the present invention and the conventional nozzle for square containers. FIG. 3 is a cross-sectional view of an embodiment of the present invention. Figure 4 is a sectional view taken along line A-A in Figure 3, and Figure 5 is B in Figure 3.
-B sectional view. 1...Contents conduit, 2...Coupled rod, 3...Valve, 4...
Nozzle, 5...Mating screw part.

Claims (1)

[Scope of utility model registration request] The cross-sectional shape of the opening of the nozzle for filling a polygonal container with a sol-like or semi-gel-like substance is formed to be roughly similar to the polygon, and further more similar to the cross-sectional shape of the nozzle opening corresponding to each side of the polygon. A filling nozzle shape characterized in that a nozzle opening cross section corresponding to each corner of a polygon is formed in a shape that projects outward.