Fuji Photo Film Company, Limited

Takayoshi Ose

Makoto Sato

Satoshi Aramaki

Kazuaki Taga

Shoichi Aoki

The outer surface of an article is covered with a wrapping film, and both edges of the film are lap-welded with each other to constitute a body seal section. Both of the upper and lower edges of the film overlap extending out of an article to be wrapped are folded to the inside of the article, whereby upper and lower folded parts are formed. These folded parts overlap with each other, and are bonded and lap-welded together, thereby constituting a side seal section. An unbonded part is formed along the periphery of the upper folded part, wherein the upper folded part and the lower folded part are not bonded together. Two slits are formed in that unbonded part substantially at right angles or an inclined angle to the edge of the upper folded part, and spaced apart from each other by a certain interval. When an interval between the slits is peeled off with a finger, the unbonded part splits along the slits, and hence the side seal section splits. The split made by the slits is extended along the body seal section by pulling the split further toward the inside of the article, whereby the body seal section is removed.

Wrapped article

In an encasing mechanism for a cassette enclosing a magnetic record medium, the mechanism provides a cassette with a recess formed at a first surface of the cassette to identify first and second surfaces and first and second edges of the cassette, a case main body, and a cover coupled rotatably to the case main body to be openable relative to the case main body, in which the cover includes at least one projection formed on an inner surface of the cover. The projection is fitted into the recess so that the cover is closed relative to the case main body in an inserted arrangement of the cassette into the case main body. The encasing mechanism is capable of encasing the magnetic record medium cassette only when the cassette is correctly positioned in the case main body.

Encasing mechanism for a cassette enclosing a magnetic record medium

The outer surface of an article is covered with a wrapping film, and the both edges of the film are lap-welded with each other to constitute a body seal section. A first slit is formed along the body seal section, substantially parallel thereto, and is spaced a small distance apart therefrom. A second slit is formed in the body seal section substantially at right angles or an inclined angle to the edge of the body seal section. When the end of the first slit is peeled off, the film splits along the body seal section and also towards the second slit. The second slit helps the split to stretch further in the transverse direction of the article. As a result of this, the wrapping film splits in both the longitudinal and lateral directions thereof.

Wrapping film for article

The outer surface of an article is covered with a wrapping film, and both ends of the wrapping film are lap-welded by heating, so that a body seal section is created. An unbonded part is formed on the periphery of the edge of an upper overlapping film of the wrapping film along the marginal line of the same. This unbonded part extends between the marginal line of the upper overlapping film and the edge of the body seal section. A slit is formed in the vicinity of the unbonded part at right angles to the marginal line of the upper overlapping film. A weakly bonded part, where the upper overlapping film and the lower overlapping film are weakly bonded to each other, is formed to be adjacent to the opposite side of the unbonded part of the body seal section relative to the slit, and extends from that side of the unbonded part to a predetermined length along a marginal line of the upper overlapping film.

Wrapped article with tear slits

A wrapping film having a barrel seal portion made up of both end portions of the wrapping film which are overlapped with each other and sealingly welded together, and a slit for unwrapping the film along the barrel seal portion. The slit is formed across the barrel seal portion, whereby, in unwrapping it, the wrapping film is widely torn to expose the wrapped article with ease.

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Kanagawa, Japan

Takayoshi Ose