JPH0133463Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a lid for a can that stores the liquid contents of beer, carbonated drinks, etc. It vents gas before opening the entire surface to prevent the liquid contents from spouting out when the lid is opened. The present invention relates to a lid for a can that effectively prevents the problem.

Conventionally, when opening the entire lid of this type of container, first, a pull ring fixed to the end plate via a rivet is pulled up, a part of the end plate is cut along the circular score line, and then a part of the end plate is cut along the circular score line. The entire lid was opened by pulling up the area surrounded by the circular score line via the pull ring. However, according to the configuration of this prior art, the circular score line is formed near the outer periphery of the end plate, so even if the container itself is slightly tilted, the initial opening will be located near or below the liquid level. If the pressure inside the container is high, the liquid inside the container will gush out along with gas the moment it is initially opened, staining clothes and the floor. Therefore, a full-opening can container having such a structure has the disadvantage that it cannot be used for pressurized liquids such as beer and carbonated beverages.

Therefore, the present invention is intended to solve such drawbacks of the conventional technology, and its purpose is to provide an exhaust hole near the center of the head plate and open this exhaust hole to vent gas before opening the entire surface. Therefore, it is an object of the present invention to provide a lid for a full-opening can body container that prevents the content liquid from spouting out when the lid is opened and can be used for pressurized liquids such as beer and carbonated drinks.

The present invention, which has the above-mentioned purpose, consists of a head plate having a main score line for opening the entire surface on the periphery and an auxiliary score line for forming an exhaust hole near the center, an annular lifting part, a mounting part following the lifting part, and an anti-lifting part. The main pull ring has an action part at the tip, and the central part of the mounting part is fixed to the inside of the main score line of the end plate via a rivet, and the pull ring is fixed to the inside of the auxiliary score line of the main pull ring. It is a ring metal and consists of an auxiliary pull ring which breaks the end plate to form an exhaust hole before opening the lid.

According to the present invention, the central part of the mounting part is fixed to the inside of the main score line through a rivet, and the main pull ring is fixed to the inside of the main score line, and the auxiliary ring is used to break the end plate to form the exhaust hole before opening the lid. Consists of ring metal. First, bend the auxiliary pull ring and use the action part as a fulcrum for leverage.
Lift the rivet to form the exhaust hole. After degassing in this manner, the auxiliary pull ring is separated from the main pull ring. Next, there will be a space inside the lifting part of the main pull ring, so when you insert your finger into this space and pull it counterclockwise, the action part of the main pull ring will press a part of the main score line. When the mirror plate is bent downward to form an initial opening and then pulled up, the mirror plate is broken along the main score line and the entire surface is opened.

In this way, since the gas is vented using the auxiliary pull ring before the lid is fully opened, it is possible to completely prevent the contents from spewing out when the lid is opened.

The present invention having the above object will be explained based on the illustrated embodiments. In FIGS. 1 to 4, 1
2 is the lid of the can body container according to the present invention; 2 is a circular head plate constituting the lid 1; the head plate 2 is provided with a score line 21 for opening the entire surface with a V-shaped cross section near the periphery; An auxiliary score line 22 having a small diameter and a V-shaped cross section is provided. This auxiliary score line 22 is used to form an exhaust hole 23 for venting gas in the end plate 2 using an auxiliary pull ring 5 to be described later. Since the exhaust hole 23 is located near the center of the end plate 2, the exhaust hole 23 will always be located above the level of the liquid content W even if the can is tilted a little. By opening the
Degassing can be performed without spouting out the content liquid W.

3 is a main pull ring fixed to the inside of the main score line 21 on the end plate 2 via a rivet 4 formed integrally with the end plate 2, and the main pull ring 3 is lifted by inserting a finger. an annular lifting part 31 and the lifting part 3 for
It consists of a substantially trapezoidal mounting part 32 following 1,
The mounting portion 32 is provided with an engagement hole 33 in the center for engaging the rivet 4, and is provided with an action portion 34 at the tip on the side of the holding portion 31. This main pull ring 3 lifts the lifting part 31, presses the main score line 21 of the end plate with the action part 34 by lever action, breaks a part of the end plate 2, and further pulls up the lifting part 31, so that the end plate 2 is partially broken. 2 to open the entire surface along the main score line 21. Reference numeral 35 denotes a substantially C-shaped slit provided outside the engagement hole 33 to facilitate pulling of the main pull ring 3.

Reference numeral 5 denotes an auxiliary pull ring connected to the inner periphery of the lifting part 31 of the main pull ring. It is fixed inside the score line 22,
A thin wall portion 7 is provided at the connection portion with the main pull ring 3 to facilitate cutting. The auxiliary pull ring 5 consists of an annular lifting part 51 and a substantially trapezoidal mounting part 52 following the lifting part 51.
2 is provided with an engagement hole 53 in the center for engaging the rivet 6, and an action part 5 at the tip on the side of the anti-holding part 51.
It is equipped with 4. Auxiliary pull ring 5 with such a configuration
The acting part 54 is connected to the inner periphery of the lifting part 31 of the main pulling ring on the side of the reaction part 34 so that its acting direction is opposite to the acting direction of the main pulling ring 3. This auxiliary pull ring 5 is used to break the end plate 2 and form the exhaust hole 23 before performing the lid opening operation using the main pull ring 3. That is, the lifting part 51 is pulled upward and bent at the thin part 7, and the working part 5
The rivet 6 is lifted by lever action using the fulcrum 4 as a fulcrum, and the end plate 2 is broken along the auxiliary score line 22 to form the exhaust hole 23. After forming the exhaust hole 23 in this manner, the auxiliary pull ring 5 is separated from the main pull ring 3 at the thin wall portion 7 and removed from inside the raised part 31 of the main pull ring. This is to make it easier to insert a finger into the holding part 51 of the main pull ring when opening the lid. Note that in this example, rivets 4 and 6
Although the end plate 2 and end plate 2 are integrally molded, they can also be molded separately.

When opening the can body container 8 using the lid 1 of the present invention having the above configuration, as shown in FIG.
Pull up the lifting part 51 of the auxiliary pull ring clockwise. Then, due to the lever action using the action part 54 as a fulcrum,
The rivet 6 is lifted upward and the end plate 2 is broken along the auxiliary score line 22 around the rivet 6,
An exhaust hole 23 is formed. The gas, which was at a fairly high pressure inside the can container 8, flows out of the can container 8 through the exhaust hole 23, and the internal pressure of the can container 8 decreases, so that the internal pressure and external pressure of the can container 8 decrease. A state of equilibrium is reached. In this case, since the exhaust hole 23 is provided near the center of the end plate 2, the exhaust hole 23 is always located above the level of the content liquid W even if the can body 8 is tilted a little. The content liquid W does not spout out from the exhaust hole 23 when the exhaust hole 23 is opened.

After degassing in this way, when the auxiliary pull ring 5 is pressed against the side of the end plate 2, the auxiliary pull ring 5 is separated from the main pull ring 3 at the thin section 7.
The separated auxiliary pull ring 5 is removed from inside the lifting part 31 of the main pull ring. At this point, a space is created inside the lifting part 31 of the main pull ring, so if you insert your finger into this space and pull up the lifting part 31 counterclockwise as shown in Figure 4, a lever action will occur. Then, the action part 34 of the main pull ring presses a part of the main score line 21, breaks the head plate 2, and at the same time bends the head plate 2 downward, forming an initial opening A at the periphery of the head plate 2.
In this case, since the can body container 8 has been degassed in advance through the exhaust hole 23, even if the can body container 8 is slightly tilted during the lid opening operation, the liquid content W will not spout out at the same time as the initial opening A is formed. . After breaking a part of the mirror plate 2 in this manner, when the entire main pull ring 3 is pulled upward, the mirror plate 2 is broken along the main score line 21 and is completely opened.

The present invention has the above-mentioned structure and function, and an exhaust hole is provided near the center of the end plate, and this exhaust hole is opened to vent gas before the entire surface is opened, so that when the lid is opened, the liquid inside will be released. Splashing can be completely prevented. Therefore, even when beer, carbonated drinks, etc. are stored, clothes and the floor will not be soiled when the lid is opened, and these liquids can be safely used.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a plan view of the lid of a can according to the present invention, Fig. 2 is an enlarged central vertical sectional front view of the same main part, and Fig. 3 is a diagram showing an embodiment of the present invention. FIG. 4 is a central longitudinal sectional front view showing a state in which the exhaust hole is opened in the lid of the can body container, and FIG. 4 is an explanatory view showing the operation of opening the entire surface of the lid. Explanation of symbols, 1...Lid of can body, 2...End plate, 21...Main score line, 22...Auxiliary score line, 23...Exhaust hole, 3...Main pull ring, 31,
51... Lifting part, 32, 52... Mounting part, 33,
53...Engagement hole, 34, 54...Action part, 35...
...Slit, 4, 6... Rivet, 5... Auxiliary ring ring, 7... Thin wall portion, 8... Can body container, A... Initial opening, W... Content liquid.

Claims (1)

[Scope of utility model registration request] It has an end plate with a main score line for opening the entire surface on the periphery and an auxiliary score line for forming an exhaust hole near the center, an annular lifting part, a mounting part following the lifting part, and an action part at the tip of the anti-holding part. , a main pull ring whose central part of the mounting part is fixed to the inner side of the main score line of the end plate via a rivet, and a main pull ring connected to the inner periphery of the lifting part of the main pull ring and connected to the auxiliary score line of the end plate via a rivet. 1. A lid for a can body, comprising a pull ring fixed on the inside, and an auxiliary pull ring that breaks a head plate to form an exhaust hole before the lid is opened.