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US 7,597,480 B2Granted
Fastener bag
AssigneesHosokawa Yoko Co., Ltd., Idemitsu Unitech Co., Ltd.
InventorsRaizo Kuge, Sho Obara, Yuichi Oki
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AssigneesHosokawa Yoko Co., Ltd., Idemitsu Unitech Co., Ltd.
InventorsRaizo Kuge, Sho Obara, Yuichi Oki
Estimating the term…
There is provided a fastener bag capable of improving working efficiency for the filling of inner content and forming a bag cut-starting portion. The bag is formed as gusset-type packaging bag, to which a fastener for freely opening or closing the packaging bag is attached. The fastener has a male portion to which a projected thread is formed and a female portion to which a groove is formed so as to be engaged with the projected thread. Base portions of the male and female portions are attached to an inner surface of one of the flat surface portions or side surface portions so that the projected thread and the groove face each other. A cut-tape for separating the flat surface portion into the male portion side and the female portion side is provided between the base portions.
A fastener bag comprising:
A fastener bag comprising:
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
From the US filing history. Foreign family members aren’t listed.
Bags or like containers made of paper and having structural provision for thickness of contents: with gusseted sides
Comprising tamper-indicating means, e.g. located within the fastener: the slide fastener being located between the product compartment and the…
Using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor:…
The slide fastener providing access to the bag through a bag wall, e.g. intended to be cut open by the consumer: the slide fastener being attached…
Term ended 13 Nov 2024 (estimated)
The present application is based on International Application PCT/JP2003/003152, filed Mar. 17, 2003, which application is incorporated herein by reference in its entirety.
The present invention relates to a fastener bag of gusset-type structure which can be easily opened and is provided with a fastener to be freely opened or closed.
In these days, there is high requirement of producing a packaging bag provided with an easily opening mechanism and a mechanism for freely opening and closing an opening of the opened packaging bag. Specifically, it is required to provide a fastener bag having both functions in a technical field of an automatic filling and packaging bag capable of simultaneously filling a content in the bag and packing the bag.
FIG. 1 is a perspective view of a fastener bag according to one embodiment of the present invention.
FIG. 2 is an enlarged sectional view of the fastener bag showing an attached state of a fastener for freely opening and closing the fastener bag and a cut tape as seal-opening means.
FIG. 3 is a view, in an enlarged scale, of a tab portion formed to a cut-tape end formed to the fastener bag shown in FIG. 1.
Hereunder, embodiments of the present invention will be described with reference to the accompanying drawings.
FIGS. 1 to 3 show a fastener bag 1 according to one embodiment of the present invention, in which FIG. 1 is a perspective view showing an entire structure of the fastener bag 1, FIG. 2 is an longitudinal sectional view of the fastener bag 1 showing an attached state of a fastener 10 for freely opening or closing the fastener bag 1, and FIG. 3 is an enlarged view showing a seal-opening starting portion of a cut-tape 14 for opening the fastener bag 1.
The fastener bag 1 is formed to have a rectangular shape having a pair of opposing flat surface portions 2, 2, side surface portions 3, 3 positioned at side edge portions 2a, 2a of the flat surface portions 2, 2, and a bottom surface portion 4 closing a bottom of the fastener bag 1. The fastener bag 1 is formed as a gusset-type packaging bag in which the side surface portions 3, 3 are folded inside along folding lines 3a, 3a in form of gusset.