JPS603107Y2 - Container with opening device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a container with an opening device, and in particular, an inner lid made of thermoplastic synthetic resin, metal, or a laminate thereof is attached to the opening of the container body, which has a thermoplastic synthetic resin coating on the inner surface. It is glued and sealed, and is shaped by a U-shaped cut on the top of the inner cover and a groove connecting both ends of the U-shaped cut, and a cutting edge is required on the inner cover side to break the inner cover. It is characterized by a synthetic resin outer lid fitted with acupressure parts each having a protrusion on the opposite side, making it suitable for high-temperature filling and packaging of soft drinks, alcohol, etc. It is something that

Conventionally, this type of container for filling and packaging liquids such as soft drinks has been made by cutting an opening hole in advance into a paperboard lid, and then gluing a synthetic resin pull tab onto the lid. or a lid made of paper, synthetic resin, metal foil, or a laminate thereof, with an opening hole made in advance, and a seal made of a laminate of paper, synthetic resin, etc. However, since the lids of these containers are flat and glued together, if the contents are filled at high temperatures, the container body and bottom will deform after cooling, so they cannot be used for high-temperature filling. Ta.

The present invention was conceived in view of the above points, and will be described in detail below based on embodiments shown in the drawings.

First, as shown in FIG. 1, the present invention is designed to cover the opening of a container body 1, which has a thermoplastic synthetic resin film on the inner surface of paper, with a thermoplastic synthetic resin, metal, or a laminate thereof (for example, polyethylene, aluminum foil, or An inner lid 2 made of a polyethylene-aluminum foil laminate, which is slightly curved outward, is adhered by heat sealing or the like in a slightly curved inward state as the contents cool, and an opening device is attached on top of it. The provided outer cover 3 is fitted over the cover.

To explain the opening device in more detail, as shown in FIG. 2, the outer cover 3 has a U-shaped notch 10 located near the outer periphery above the center of the outer cover 3 so that the end thereof is located inward. An acupressure part 6 is provided which can be pivoted downward in a hinged manner by a groove 1 of approximately half the depth of the material connecting both ends of the material. part 7, and a blade part 9 is formed on the underside of the acupressure part 6 with a height such that the cutting edge does not touch when the outer cover 3 is fitted onto the inner cover 2. In order to ensure the fitting between the outer lid 3 and the container body 1, the outer periphery of the outer lid 3 is further provided with an inward portion that engages with the winding portion 4 of the opening of the container body 1. A depending part 5' having a protruding rib 5 is provided.

Note that the material of the outer lid 3 is preferably a thermoplastic synthetic resin such as polypropylene, taking into consideration the moldability of the acupressure part 6 and the like.

Next, when using the container of the present invention, by lightly pushing the protrusion 7 of the outer lid 3 downward with your fingers, the U-shaped notch 10 will break, the groove 8 will become two, and the acupressure part 6 will rotate. Then, the inner lid 2 is pierced by the blade 9 and opened, so the contents can be transferred to another cup, etc., or can be drunk by directly putting it in your mouth, or by inserting a straw. good.

In the above description, the blade part 9 of the unsealing device is described as having a square pyramid shape, but as shown in FIG. Alternatively, as shown in FIG. 6, it may be shaped like the shape shown in FIG. 5, with the oblique side 11 cut off into a substantially square square shape 12.

Moreover, if the outer cover 3 is not circular but has a shape in which the left and right arcs are cut off with the center line of the circle as an axis, as shown in FIG. 7, materials can be saved.

Since the present invention is constructed as described above, it has the following excellent practical effects.

(a) The opening device has a simple structure, consisting of a cut in the synthetic resin, a groove, and a blade, making it easy to handle and open.

If the protrusion 7 is provided on the top surface of the acupressure part of the opening device, the fingers will not come into contact with the contents when the opening is pushed in.

(c) Since the inner lid is made of thermoplastic synthetic resin, metal foil, or a laminate thereof, when the contents are filled at high temperatures, it tends to curve inward after cooling, and the curvature creates a gap with the outer lid. Therefore, the blade of the unsealing device does not touch the inner lid before opening, so there is no chance of accidentally opening the lid.

[Brief explanation of the drawing]

The drawings show one embodiment of the invention; Fig. 1 is a cutaway view of the invention, Fig. 2 is a plan view, Fig. 3 is an explanatory view showing the opening device, and Fig. 4 is a broken surface showing the state of use. , FIG. 5, and FIG. 6 are explanatory diagrams showing another embodiment of the blade portion, and FIG. 7 is a plan view showing an embodiment of the outer lid. 1... Container body, 2... Inner lid, 3...
...outer lid, 4...winding part, 5...
Rib, 6...Shiatsu part, 7...Protrusion, 8
...Groove, 9.9', 9" ...Blade, 1
0... Depth of cut, 11... Hypotenuse, 12.
...V-shaped cut, 5'... hanging part.

Claims (1)

[Scope of utility model registration request] An inner lid made of thermoplastic synthetic resin, metal, or a laminate thereof is adhered to the opening of the container body having a thermoplastic synthetic resin film on the inner surface, and a substantially U-shaped cut is made from the top of the inner lid near the outer end. and a hinge-forming groove connecting both ends of the notch, and an outer lid provided with an acupressure part having a blade on the inner lid side is fitted over the inner lid so that the blade does not touch the inner lid. Container with opening device.