JPS5929872Y2 - Top lid of sealed container - Google Patents

Description

[Detailed description of the invention] Industrial field of application The present invention relates to an improvement of the top lid attached to a sealed container. Specifically, a weakened line for opening is formed on the top plate of the lid, so that the lid can be opened with only hands and fingers. This invention relates to an improvement of the upper lid.

Conventional technology In the case of a conventional top lid with a weakened line engraved for opening a sealed container that can be opened with just a finger, a ring-shaped lifting device is placed on the top surface of the lid to pull it up by inserting a finger. Many of them were made of synthetic resin and had a support piece that could be held with one's fingers.

However, this type of top lid has disadvantages in that it requires a complicated mold, resulting in poor productivity, and is bulky, requiring a large amount of material, resulting in high costs.

For the top lid with a metal annular lifting tool attached to a partially aluminum plate-like base, use a screw to make a small hole, then drill along the weakened line for the opening on the top lid. One that opens by pulling up is used.

This makes the container bulky, complicates the manufacturing process, and reduces productivity.Additionally, expensive materials such as aluminum plates are used.
In addition, transportation costs were high, which was a factor in the high cost.

Easy-to-open synthetic resin or metal top covers with these lines of weakness engraved on them often have defects such as the handles tearing off or coming off when they are pulled up and opened using a screwdriver.

Therefore, in order to solve these problems, on the top surface of the top lid,
A top lid with a line of weakness to form a pull-up part and a push-in part that will serve as a handle for opening the top cover, and the push-in part is pushed down with a finger or the like, making it double with the pull-up part, and the push-in part is grasped to serve as a pull-up handle. was provided.

However, when the push-in part is pushed down, the pull-down part gets under the lid together with the push-in part, and it has a drawback that it cannot function as a handle.

Problems to be Solved by the Invention In view of the slanting situation, the present invention aims to provide an upper lid that can prevent the pull-down part from entering the underside of the lid together with the push-in part when the push-in part is pressed down. do.

Means for Solving the Problems Therefore, in the present invention, the unsealed part of the upper lid top plate is composed of a main body part, a lifting part continuous to the main body part, and a pushing part continuous to the lifting part, and The outer periphery of the pushed-in part is surrounded by the weakened line for the pushed-in part and the weaked line for the hinge, and the outer periphery of the pulled-up part, excluding the continuous part of the pulled-up part and the main body part, is continuous with the weakened line for the pushed-in part and the weakened line for the hinge. The outer periphery of the main body is surrounded by a main body weakening line that has at least one end continuous with the pulling-up part weakening line, and at least a part of the push-in part weakening line is surrounded by the main body weakening line and the hinge weakening line. To provide an upper lid for a sealed container, which is formed weaker and has a lifting portion curved into a substantially U-shape in plan view.

In order to open the top lid, the push-in part is first bent to the underside of the top plate, but at this time, only the push-in part weakening line breaks easily, while the pulling-up part weakening line breaks along the push-in part weakening line. It will not break continuously.

Further, even if the push-in portion is about to enter the underside of the lid, the curved portion of the push-in portion prevents the push-in portion from advancing.

Therefore, first, only the push-in portion is reliably folded under the top plate, then the pull-up portion is lifted together with the push-in portion, and the main body portion is subsequently pulled up and opened.

Embodiment Hereinafter, an embodiment of the present invention will be explained based on the drawings. Fig. 1 is a plan view of a top cover showing a first embodiment. It has a circular shape in plan view so that it can be attached to the container body.

FIG. 2 is a sectional view taken along the line I-I' in FIG. .

The upper lid main body A has a top plate, a sealing part 6 and a flange lid part 7, which are means for attaching the top plate to the container body 8.

This flange lid part 7 is a peripheral wall provided on the outer periphery of the top plate, and the sealing part 6 is formed by bending outward and downward from the upper end of the flange lid part 7.

Then, the upper end of the container body 8 is inserted between the sealing part 6 and the flange lid part 7 and fixed.

The top plate of the upper lid body A has a main body part 10, a lifting part 9 continuous to the main body part 10, and a pushing part 5 continuous to the lifting part 9, and each part 10, 9.5 is opened when the upper lid is opened. constitutes the part to be opened and removed.

The lifting portion 9 is curved semicircularly along the outer periphery of the top plate, and has a substantially U-shape in plan view.

The outer periphery of the pushing part 5, which is substantially quadrilateral in plan view, is surrounded by pushing part weakening lines 3a, 2b, and 3C on three sides,
The other side is surrounded by a hinge line of weakness 4.

Next, the pulling portion 9 has pulling portion weakening lines 2 a , 2 which are curved in a substantially U-shape and arranged in parallel with the hinge weakening line.
Although almost the entire outer periphery is surrounded by b, there is no line in the shape of only the continuous part 11 with the main body part 10,
The lifting portion 9 and the main body portion 10 are integrally joined at the continuous portion 11.

Note that the inner and outer pulling-up portion weakening lines 2b and 2a are continuous with the inner and outer pushing-in portion weakening lines 3b and 3a, respectively.

Then, a main body weakening line 1 provided continuously with the outer pulling part weakening line 2a surrounds the outer periphery of the main body 10, and the other end of the main body weakening line 1 is connected to the push-in part weakening line 3a.

Thus, each line of weakness 3a, 2a, 1 forms a continuous circle, and the circle defines the outer periphery of the portion of the top plate to be opened.

As shown in FIG. 2, each of the weakened lines is a V-shaped groove carved on the top surface of the top plate, and the push-in weakened line 3C is the deepest and therefore weakest, and the hinge weakened line 4 is the weakest. Shallow and therefore strongly formed.

When opening a container sealed with the top lid A, first press down the push-in part 5 with your finger, and the push-in part weakening line 3
a, 3b, and 3C are cut, and the push-in part 5 is on the lower side from the weakened line 4 for the hinge (back side in Figure 1, lower side in Figure 3)
can be folded into

Next, as shown in Fig. 3, the pushed-in part 5 folded in this way is overlapped with the pulling-up part 9 and pulled up, and the pulled-up part 9 is separated along the weakened lines 2a and 2b. The main body part 10 is easily separated along the main body part weakening line 1, and the top cover is opened, leaving the sealing part 6 and the flange cover part 7 on the container body part 8.

The following Fig. 4 is a plan view of the top cover showing another embodiment, Fig. 5 is a sectional view taken along the line II-t■' of Fig. FIG. 3 is a perspective view showing the state of use when the package is opened.

The upper lid main body B is made of plastic or paper, and the lifting part 9' is curved in a U-shape toward the center of the upper surface of the upper lid main body B, and the pair of push-in parts 5' and 5' are the lifting parts 9'. It differs from the first embodiment in that it is provided on both sides of the end.

Incidentally, parts that are substantially the same as those in the first embodiment are indicated by the same reference numerals with a dash added thereto, and detailed explanation thereof will be omitted.

When opening this top cover, first
Press ', 5' with your finger and press the weakened lines 3', 3'
, and bend both push-in portions 5', 5' downward at the hinge weakening lines 4', 4'.

Next, when both push-in parts 5' and 5' are picked up with both teeth, the pulling-up part 9' is separated along the pulling-up part weakening lines 2a' and 2b', and when pulled up further, the main body part weakening line 1
The main body part 10' is separated along the line ', and the top lid is opened from the container body part 8'.

That is, in this embodiment, both push-in portions 5'. 5' acts as a knob, and if you pick it up with both teeth at the same time, you can open it in a stable state along the line of weakness.

Incidentally, since the upper lid main body B of this example of the invention is sealed to the container body 8' by a seal portion S, it is also possible to remove this seal portion S at the same time and open the container.

The line of weakness of the present invention does not reach the back surface, and in order to make it especially easy to separate, at least a part of the weakened line of the push-in part is made into a V shape that is deeper than the weakened lines of the other pull-up parts, the main body part, and the hinge.
While the groove is shaped like a letter, the other weakened lines are shallow grooves so that only the push-in part can be pushed down reliably.

Alternatively, depending on the material used for the top cover or the purpose of use, each line of weakness may be perforated.

At this time, those skilled in the art will naturally understand that in order to weaken the line of weakening of the push-in portion, the perforations may be made denser than other perforations.

Note that the lifting portion is curved into a substantially U-shape;
This does not need to be properly U-shaped; it is sufficient to have a curved shape that can prevent the lifting part from accidentally entering the underside of the lid due to the pushing down of the pushing part.

In addition, the material of the top lid of the present invention may be thin metal plates such as aluminum, synthetic resins such as PVC, polyethylene, paperboard, etc. In order to further improve the heating effect and sealing performance, the above-mentioned packaging materials may be combined into a composite structure. It is also possible to use other materials.

On the other hand, for the structure of the container body and bottom lid, a can, a paper cup, or an integrated resin molded product can be widely used.

In addition to the effects of the invention, the top lid of the sealed container of the present invention is a finished product made from a simple structure, and there is no need to newly mount or attach a handle, so the amount of materials can be reduced, and raw material costs can be reduced. It is inexpensive and can be designed and manufactured in such a way that the handle on the pull-up part is strong enough to withstand the force that separates the weakened wire, so there is no risk of the handle coming off or breaking off midway.

Moreover, because the opening crack line on the periphery of the pushing part is made deeper than the other crack lines, only this crack line can be easily torn, while the breaking line on the periphery of the pulling part cannot be torn simply by pushing down the pushing part. It is possible to prevent the occurrence of a situation in which the pulling part goes under the lid together with the pushing part when the pushing part is pushed down.

Furthermore, since the push-in part is curved in a roughly U-shape, even if a part of the push-in part is about to get under the lid,
The curved part prevents it from entering.

Therefore, the present invention can provide a practical top lid in which the lifting part and the pushing part can be reliably used as a handle.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the top cover showing an embodiment of the present invention, Fig. 2 is a sectional view taken along the line I-I' of Fig. 1, and Fig. 3 shows the state of use of the same embodiment when opened. 4 is a plan view of the top cover showing another embodiment of the present invention, FIG. 5 is a sectional view taken along line II-II' of FIG. 4, and FIG. 6 is a plan view of this embodiment. FIG. 3 is a perspective view showing the state of use when the package is opened. Explanation of symbols of main parts 1, 1... Main body weakening line, 2a, 2 b, 2 a', 2 b'...-
・Lifting part weakening line, 3a, 3b, 3C, 3'...
...Push down part weakening line, 4.4'...Weakening line for hinge, 5.5'...Pushing down part, 9,9'...
...Lifting part, 10.10'...main body part, 11.11'...continuous part of pulling part and main body part.

Claims (1)

[Scope of utility model registration request] The unsealed part of the upper lid top plate consists of a main body part, a lifting part continuous to the main body part, and a push-in part continuous to the pull-up part, and the push-in part is folded into the underside of the top plate, and the push-in part At the same time, the lifting part is lifted, and the top lid of the sealed container is opened by tearing the outer periphery of the main body in succession to the lifting part. The periphery of the pulling portion, excluding the continuous portion between the pulling portion and the main body portion, is surrounded by the lifting portion weakening line that is continuous with the pushing portion weakening line and the hinge weakening line, and at least one end is surrounded by the lifting portion. The outer periphery of the main body is surrounded by a main body weakening line continuous to one end of the weakening line, and at least a part of the push-in weakening line is weaker than the main body weakening line, the pushing-in weakening line, and the hinge weakening line. Also, a top lid of a sealed container, characterized in that the lifting portion is curved into a substantially U-shape in plan view.