JPH0536824Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a protective lid for canned goods, and particularly to a protective lid that is attached to the top lid of a two-piece can that is formed by integrally forming a bottom lid and a body. It depends.

[Prior Art] Generally, small cans of food are often fitted with protective lids made of synthetic resin. This is because many of these types of canned goods have a knob attached to the top lid to open the lid, so if there is dust or dirt on the top lid, it will be unsanitary when the lid is opened. , is installed to prevent this. In addition, this type of canned goods is displayed stacked on shelves at retail stores, so this is to prevent them from falling apart.

By the way, as this type of protective lid, one made by integrally molding a thin sheet of synthetic resin is known as described in Japanese Utility Model Application Publication No. 61-51349.

This prior art has a structure as shown in FIG. This conventional technique is mainly used for cans (three-piece cans) in which a top lid 31 and a bottom lid 32 are secured to the top and bottom of a cylindrical body 33 by tightening. In other words, since this type of can has a protrusion 34 formed on the top and bottom of the can by seaming, a protective lid 3 is provided with an apron to cover the outside of the protrusion 34.
5 is used. A ridge 36 is formed on the upper surface of the protective lid 35, and extends inside the ridge 34 on the bottom of the canned food stacked on the upper level.

However, although the above-mentioned conventional technology can be used for three-piece cans, there is a problem in that it cannot be used for two-piece cans that are recently used for food products.

That is, a two-piece can has a bottom lid and a body integrally molded, and its bottom is flat and has no seam. Therefore, unlike the prior art, the ridge 36 cannot be fitted inside the ridge 34 of the seaming portion.

On the other hand, as described in Japanese Utility Model Application Publication No. 56-138042, a ring-shaped ridge is provided around the top lid, and this is fitted to the outer periphery of the bottom of the two-piece can (the inside of the ring-shaped ridge is It is also conceivable to fit the bottom of a two-piece can). Certainly, in this way, even two-piece cans can be stacked.

[Problems to be Solved by the Invention] However, the above-mentioned conventional techniques all have problems and lack practicality.

That is, in the first conventional technique, the apron for fixing the protective lid 35 to the can is bent downward immediately from the surface of the protective lid, and from the bent part to the tip of the apron (to the seaming part of the can). The distance to these protrusions) is becoming shorter. Therefore, it is difficult to spread the apron outward, and it is necessary to make the material of the protective lid thin or to form it from a material that is easily elastically deformable. However, in this case, the strength of the protective lid itself is reduced, and when cans are stacked on top of the protective lid in multiple tiers, there is a risk that the protective lid will be deformed or damaged.

Next, even in the second protective lid, the apron needs to spread outward in order for the protrusion of the apron to engage with the seaming part, but the apron of this second prior art It is formed directly below, and has the same configuration as the first prior art. Therefore, even with this prior art, it is not possible to obtain a protective lid that is easy to attach while ensuring sufficient strength. Therefore, in the second conventional technique,
By increasing the length from the bending point with the top lid to the protrusion,
Although the apron can be deformed, the protrusion cannot always be engaged with the seaming part.

The present invention was proposed in order to solve the problems of the conventional technology as described above, and its purpose is to make it easy to attach to the top of a canned food, and to ensure that other canned goods can be stacked on the top shelf. An object of the present invention is to provide a protective lid for a two-piece can having sufficient strength.

[Means for Solving the Problems] In order to achieve the above object, the two-piece can protective lid of the present invention is an elastically deformable protective lid that is attached to the top lid of a two-piece can in which the bottom lid and the body are integrally formed. In a two-piece protective lid for a can made of this material, a plurality of ridges are formed on the periphery of the circular top lid by raising the top lid surface upward and then bending it downward into a hairpin shape. Provided at intervals along the entire periphery of the top lid, the portion surrounded by a plurality of ridges protruding from the surface of the top lid is used as a fitting part for the bottom of the two-piece can, and each of the ridges is directed downward in a hairpin shape. An integral apron is formed downward over the entire circumference of the protective lid from the bent portion and the portion of the upper lid periphery where the ridge is not formed, and the entire inner surface of the apron is It is characterized in that a protrusion is formed inward around the periphery to engage with the protrusion of the top lid seam of the two-piece can.
[Operation] In the present invention having the above configuration,
Since the apron is formed linearly downward from the upper edge of the ridge, when the protective lid is placed over the top of the can, the apron expands outward using the bending point of the upper edge of the ridge as a fulcrum. As a result, the distance from the fulcrum to the tip of the apron becomes longer than in the prior art in which the apron is formed directly below the top lid surface, making it easier for the apron to spread outward.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to FIGS. 1 and 2.

In the figure, reference numeral 1 denotes a two-piece can, and 2 denotes a protective lid of this embodiment that is attached to the top of the can.

The canned food 1 is composed of a bottom lid 3 and a body 4 that are integrally formed, and an opening on the top surface thereof is sealed by an upper lid 5 by winding.

The protective lid 2 has an apron 6 on the periphery of the circular upper lid 5.
The apron 6 is further formed with protrusions 7 facing inward at predetermined intervals over the entire circumference thereof. This protrusion 7 is provided at a position where it engages with a protrusion 8 of a seaming portion formed on the upper periphery of the can when the protective lid 2 is attached to the can.

Furthermore, ridges 9 integrally formed with the upper lid 5 and the apron 6 are provided at predetermined intervals on the upper peripheral edge of the upper lid 5 of the protective lid 2. That is, the protruding ridges 9 are formed as thin as possible, and the inner surface of each protruding ridge 9 draws an edge that is approximately the same as the outer shape of the bottom of the can 1. This ridge 9
This is a device that holds the canned goods in the upper row to prevent them from collapsing when stacked canned goods, and is sized so that the bottom of the canned goods fits into it.

Incidentally, in this embodiment, the relationship between the upper lid 5, the apron 6, and the ridge 9 is as follows, as shown in the drawings. That is, the cross section of the apron 6 from the upper edge of the ridge 9 and the portion of the upper lid 5 of the protective lid 2 where the ridge is not formed to the tip of the apron 6 is a vertical straight line.

In this embodiment having such a configuration,
When the can 1 is covered with the protective lid 2, the apron 6 spreads outward using the bending point of the upper edge of the ridge 9 as a fulcrum, so that the protective lid 2 can be easily fitted onto the upper part of the can 1. Furthermore, the upwardly rising ridge 9 can support the bottoms of the canned goods 1 stacked on the upper tier from the periphery.

[Effects of the invention] As described above, according to the present invention, the following effects are achieved.

The multiple ridges provided around the entire circumference of the top cover of the protective lid hold the bottom of the two-piece can from the outside, so it can securely hold two-piece cans that do not have a seam on the bottom, and will not collapse even when two-piece cans are stacked. There is no.

Since the apron expands outward using the bending point of the upper edge of the ridge as a fulcrum, the top lid can be easily fitted onto the top of the can even when the protective lid is made of a relatively rigid and elastically deformable material. At the same time, by increasing the rigidity of the top lid in this way, the strength of the ridges formed on the top lid can be improved compared to when the top lid is constructed from a flexible material, which improves the effectiveness of holding canned goods stacked on top. It gets expensive.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing a protective lid according to an embodiment of the present invention, and Fig. 2 is a vertical cross-section of a can with the protective lid of Fig. 1 attached to a can with other cans stacked on it. 3 are longitudinal sectional views showing an example of a conventional protective lid. 1... Canned food, 2... Protective lid, 3... Bottom lid, 4...
...Body, 5...Top lid, 6...Apron, 7...Protrusion, 8...Protrusion, 9...Protrusion.

Claims (1)

[Scope of Claim for Utility Model Registration] A protective lid for a two-piece can made of an elastically deformable material that is attached to the top lid of a two-piece can in which a bottom lid and a body are integrally formed; A plurality of protruding ridges are provided on the periphery at intervals along the entire periphery of the upper lid, which are formed by raising the upper lid surface upward and then bending it downward into a hairpin shape, and protruding from the upper lid surface. The part surrounded by the protruding ridges is the fitting part of the bottom of the two-piece can, and the part of each of the protruding ridges that is bent downward in a hairpin shape and the part of the upper lid periphery where the protruding ridge is not formed. forms an apron facing downward that is integral with the entire periphery of the protective lid, and the inner surface of the apron has a protrusion that engages with the protrusion of the top lid seam of the two-piece can over the entire periphery. A two-piece can protective lid characterized by being formed inward.