Kabushiki Kaisha Yakult Honsha

Shikoku Kakoki Co., Ltd.

Takafumi Kawano

Michio Ueda

Mitsuhiko Shinohara

Mikio Ishimoto

Motokazu Kawano

Toshiro Watanabe

Shin-Ichi Hoshi

Masahar Kanai

Shin-Ichiro No

It is to provide a packaging container comprising: a synthetic resin container body having a flange part at a periphery of an opening at an upper end thereof; and a container cap having a top board part and a skirt part provided such that it is suspended from a-periphery of the top board part, and wherein the top board part is heat-sealed onto an upper surface of the flange part of the container body; wherein the packaging container has a first cutout part at an upper end of an outer edge of the flange part. By providing a first cutout part, a packaging container possible to achieve sealing with the container cap stably, and to open the sealing easily and surely as well can be provided, by suppressing the effect of a molten resin on a folded corner part of the skirt of the container cap when the container body is heat-sealed with the container cap.

Packaging container

A sealing device for a packaging material tube has a pair of pressure arms 13 supported by a lift frame 11 each at a lower portion thereof and pivotally movable about respective parallel horizontal axes. A pair of sealing jaws 14 are fixed to the respective pressure arms 13 each at an upper portion of the arm so as to be opposed to each other. A high-frequency heating coil 18 is provided on one of the sealing jaws 14 for induction-heating an aluminum foil layer of the tube T present between the sealing jaws 14 as closed. A transmission-side primary coil 21 is fixedly disposed at one side of the path of vertical movement of the lift frame 11. A receiving-side secondary coil 22 is so disposed as to form a closed electric circuit along with the heating coil 18. The primary coil 21 and the secondary coil 22 are electromagnetically connected when the sealing jaws 14 are closed, and are electromagnetically separated when the jaws 14 are opened.

Sealing device for packaging material tube

Growing community of inventors

Tokushima, Japan

Takafumi Kawano