JPH047081Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to a lid for a container provided with a reinforcing material.
This invention relates to a lid for a beverage container whose top plate is provided with a reinforcing material that makes it easy to dispose of.

<Prior Art> Generally, as shown in FIG. 10, a container is known in which a lid 2 mainly made of aluminum is adhered to the open end of a container body 1 mainly made of paper in the shape of a cylinder with a bottom.
However, since the lid 2 used in this type of container is mainly made of relatively thin aluminum foil in consideration of disposal, it has the disadvantage of being low in strength.

Furthermore, when the lids 2 are to be stacked once after they are formed, the current situation is to roll up the flanges 3 and stack the rolled up portions in contact with each other, as shown in FIG. Therefore, since a step of rolling the flange 3 is required, work efficiency is poor, and it is difficult to speed up the container filling operation.If the rolling is not performed, the lids will block each other during stacking, and the forming of the container, The current situation is that supply failures tend to occur when feeding lids to filling machines, making them unsuitable for high-speed filling operations.

<Problems to be solved by the invention> The invention was made to solve these problems, and has improved strength as a lid, excellent stacking properties, and is suitable for high-speed filling operations. An object of the present invention is to provide a lid with a reinforcing material that is easy to dispose of.

<Means for Solving the Problems> In order to solve these problems, the present invention consists of a top plate made of a sheet-like material laminated with thermoplastic resin on metal foil, and a top plate that covers the opening of the container body; A lid consisting of an annular opening end of the container body with an inverted U-shape in vertical section on the periphery of the plate and a flange for adhesion, the lid having a center plate on the inside of the top plate near the boundary between the top plate and the flange. An annular reinforcing member having at least a pair of notches is provided at opposing positions in the direction.

<Function> The lid with reinforcing material of the present invention has an annular reinforcing material on the inside of the top plate near the boundary between the top plate and the flange, which not only improves shape retention but also prevents the lid from stacking when stacked. Since the upper side of the top plate and the bottom edge of the reinforcing material just touch each other, unlike conventional lids, the top plates, flanges, or both do not come into close contact with each other, and individual lids do not have to be separated when feeding lids at high speed during filling. It becomes easier.

Further, since the reinforcing material has at least a pair of notches at opposing positions facing toward the center, it can be easily bent along a line connecting the notches at opposing positions.

<Example> Hereinafter, the present invention will be described in detail based on the example shown in the drawings.

Figure 1 is a plan view of the lid of the present invention, and Figure 2 is the same A-
A sectional view taken along the line A', and Figure 3 shows the bottom view.
The present invention consists of a sheet-like material made of a thermoplastic resin such as polyethylene laminated on both sides of metal foil such as aluminum foil, and a top plate 5 that covers the opening of the container body 1.
and a flange 4 for adhesion to the open end of the container body 1, which is formed in an annular shape with a U-shaped longitudinal section on the periphery of the top plate 5, and the boundary between the top plate 5 and the flange 4 is The lid 2 has a structure in which an annular synthetic resin reinforcing member 7 having a notch 6 at a position facing toward the center is provided inside the top plate 5 adjacent to the top plate 5. The reinforcing material 7 is adhered to the back surface by a sealing method such as heat sealing or high frequency sealing.

The reinforcing material 7 is preferably formed of a resin having relatively high mechanical strength and excellent blocking resistance, such as high-density polyethylene.

Next, the details of the reinforcing material 7 will be explained. As shown in FIGS. 4 to 6, for example, the reinforcing material 7
Cut out 6 at the position where it divides into 8 equal parts, leaving thin part 8.
is provided. And, in the thin part 8,
Preferably, a V-shaped notch 9 is provided.

Furthermore, the positional relationship between the reinforcing material 7 and the top plate 5 is
As shown in the figure, the notch 6 may face inward into the container body, but as shown in FIG. 7, the notch 6 may face toward the top plate 5 side.

Further, as shown in FIG. 8, if the entire reinforcing member 7' has an L-shaped cross section, the amount of material can be reduced.

As another embodiment, as shown in FIG.
In the case of a lid having a structure that covers the opening piece 11, it is necessary to take into consideration the ease of opening the reinforcing member 7'' with a portion approximately corresponding to the width of the opening piece 11 removed.

<Effects of the invention> (a) Since an annular reinforcing material is provided inside the top plate near the boundary between the top plate and the flange, the strength of the lid is improved.

(b) An annular reinforcing material is provided on the inside of the top plate near the boundary between the top plate and the flange, so it has excellent stacking properties and can be fed to filling and packaging machines at high speed without blocking (conventionally, one hour It is possible to produce approximately 12,000 pieces per hour (→more than 20,000 pieces per hour with this invention), and the workability is excellent.

(c) Since the reinforcing material has at least one pair of notches at opposing positions facing toward the center, it can be easily bent along a line connecting the notches at opposing positions, and the reinforcing material is no longer needed. Sometimes, the reinforcing material can be bent from the notch to make it smaller, which saves space and makes it easier to dispose of.

Further, if a V-shaped notch is provided in the thin wall portion of the reinforcing material, it will be easier to bend the reinforcing material.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a plan view of the invention, Fig. 2 is a sectional view taken along the line A-A' in Fig. 1, Fig. 3 is a bottom view, and Fig. 4 is a sectional view taken along the line A-A' in Fig. 1. 5 is a sectional view taken along line B-B' in FIG. 4, FIG. 6 is a sectional view taken along line C-C' in FIG. 7, and FIG. 7 is a plan view of a reinforcing material according to the present invention. Sectional view taken along the same line as A-A' in Figure 2 showing an example, No. 8
The figure is a longitudinal sectional view showing another embodiment of the reinforcing material according to the present invention, and FIG. 9 is a bottom view showing still another embodiment.
FIG. 10 and FIG. 11 are explanatory diagrams showing the prior art. 1... Container body, 2... Lid, 3, 4... Flange, 5, 5'... Top plate, 6, 6'... Notch, 7,
7', 7''...Reinforcement material, 8, 8'...Thin wall part, 9...
...notch, 10...opening for drinking spout, 11...opening piece.

Claims (1)

[Scope of utility model registration request] A top plate made of a sheet-like material laminated with thermoplastic resin on metal foil, which covers the opening of the container body, and is bonded to the opening end of the container body, which is formed in an annular shape with an inverted U-shape in vertical section around the periphery of the top plate. A lid consisting of a flange for the purpose of cleaning the lid, wherein an annular reinforcing member having at least a pair of notches at opposing positions facing toward the center is provided on the inside of the top plate near the boundary between the top plate and the flange. A lid with a reinforcing material.