JPS5815317Y2 - A can with a sealed mouth - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a can with a sealed warm area in which the lid of the can can be tightly fitted into the warm area.

Conventionally, a warm sealing device has been known in which an elastic backing is attached to the warm part and the lower edge of the can lid is brought into contact with the elastic backing. Since the stop was a screw-lid type, not only was it necessary to form a spiral protrusion on both the warmer section and the can lid, but when opening and closing the warmer section, metal particles were generated due to sliding contact between metals, which caused the can to become damaged. There were problems such as contamination inside the container.

However, in this invention, an annular bead is provided on the elastic backing, an annular recess into which the annular bead enters and exits is formed on the side wall of the warm section, and the annular bead is formed on the side wall of the can lid when the can lid is covered. Since the annular concave portion into which the annular bead fits is formed, the warm portion can be sealed by bringing the bottom edge of the can lid into contact with the elastic backing without providing a spiral protrusion on the warm portion or the can lid. In addition to making this possible, they also succeeded in eliminating the metal sliding parts during opening and closing of the warmer, thus solving the problems of the prior art.

That is, to explain this invention with reference to an embodiment, the can body 1 and the can rolling ring 3 are wrapped around the upper end of the can body 1, and the can rolling ring 3 having the annular recessed part 2 in the middle part is tightened.
An elastic backing 5 is fitted and fixed in the annular groove 4 formed between the elastic backing 5 and the upper end of the side wall of the elastic backing 5 is provided with an annular bead 6 that enters and exits the annular recess 2 of the can roller ring 3, An annular recessed part 9 into which the annular bead 6 is fitted is formed in the side wall 8 of the can lid 7 in the shape of a capped tube that covers the warm part to constitute a warm sealing device.

10 in the figure is a winding portion formed at the lower end edge of the side wall of the can lid 7;
The iron part comes into contact with the elastic backing 5 when the crown is placed in a warm room.

Further, 11 is a partition plate which is stretched between the can body 1 and the can roll ring 3 through the seaming portion, and 12 is a cutting groove for tearing the partition plate.

In the warm sealing device of the above embodiment, when the can lid 7 is crowned, the curved portion 10 on the lower edge of the side wall first contacts the upper outer circumferential surface of the annular bead 6 and pushes it toward the can opening cylinder 3 side. Due to the pressing, the annular bead 6 escapes into the annular recess 9 formed in the can rolling ring 3, so that the winding portion 10 can get over the annular bead 6 relatively easily.

When the winding portion 10 passes over the annular bead 6, the annular bead 6 returns to its original position and fits into the annular recess 9 formed in the side wall 8 of the can lid 7.

As the annular bead 6 fits into the annular recess 9, the can lid 7 is pushed down by the lower outer peripheral surface of the annular bead 6, and the curved portion 10 of the can lid 7 touches the horizontal surface 5 of the elastic backing 5.
Pressed inside a, the iron part exhibits airtight performance.

Even when the can lid 7 is removed from the above-mentioned warm room, the annular bead deforms toward the annular recessed portion 9, so the operation can be easily performed.

When the can lid 7 is opened and closed during the warming period, the can lid 7 only comes into sliding contact with the elastic backing 5 and does not come into sliding contact with other parts, so there is no risk of metal powder being generated.

As shown by the chain line in FIG. 1, a can opening tool 13 which also serves as a sliding bar can be fitted into the inside of the can rolling ring 3 of this device. The torn edges can be torn in such a way that they are not exposed to the warm area.

That is, as shown in FIG.
At the same time, turn it upside down and attach one of the sharp parts 14 formed at the ends to the contact part 15 of the can rolling ring 3 and the partition plate 11.
If the can opener 13 is moved in the direction of arrows 16 and 17 while guiding the central sliding bar part 13a against the warm edge, the partition plate 11 will be inserted into the cutting groove 12. It can be cut along.

The partition plate 11 is made of a metal film or the like in addition to a synthetic resin film, and the cut grooves may be provided close to the upper and lower surfaces as in the embodiment, or may be provided on either the upper or lower surface. However, as mentioned above, both cans can be opened using a can opening tool that also serves as a sliding bar.

That is, according to this invention, an annular bead is provided on the elastic backing attached to the warmer part, and the can lid is hooked to the warmer part via the annular bead, and the lower end edge of the can lid is attached to the elastic backing. Because it is in contact with the spiral protrusion,
The can lid can be reliably hung on the warm section, the iron section can be sealed, and metal powder can be prevented from being generated when the warm section is opened and closed.

In the embodiment, an annular bead is provided at the upper end of the elastic backing, but the embodiment is not limited to this embodiment. It goes without saying that this invention can be implemented in other ways, such as forming a rim in the middle.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway front view of a can implementing this invention, Figure 2 is a partially enlarged sectional view of the same embodiment, and Figure 3 is the same (partially cut away state of the partition plate of the embodiment). FIG.・1... Can body, 2... Annular recess, 3... Can rolling, 4...
Annular groove, 5...Elastic backing, 5a...
...Horizontal surface, 6...Annular bead, 7...
Can lid, 8... side wall, 9... annular recessed part, 10... winding part, 11... partition plate,
12... Cutting groove, 13... Can opening tool, 1
3 a... Part of the sliding bar, 14... Sharp part, 15... Contact part, 16, 17...
・Arrow indication.

Claims (1)

[Scope of utility model registration request] 1. In a sealed can in which an elastic backing is attached to the outside of the warm section and the horizontal surface of the outer wall of the elastic backing is in contact with the lower edge of the can lid, the annular bead on the upper edge of the elastic backing is located outside the warm section. 1. A can with a warm airtight seal, characterized in that an annular recess in a wall is removably opposed to the annular recess, and an annular recess into which the bead can fit is formed on the inner wall of the can lid. 2. The can with a sealed warm space as claimed in claim 1, wherein the lower edge of the elastic backing is fitted and fixed into an annular groove formed between the can body and the can roll.