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 p
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.
대표청구항▼
The invention claimed is: 1. A fastener bag comprising: a pair of opposed flat surface portions, a pair of side surface portions located between both side edges of the flat surface portions, the side surface portions being folded inward so as to provide a gusset-type packaging bag, and a fastener f
The invention claimed is: 1. A fastener bag comprising: a pair of opposed flat surface portions, a pair of side surface portions located between both side edges of the flat surface portions, the side surface portions being folded inward so as to provide a gusset-type packaging bag, and a fastener for opening or closing the packaging bag located on an inner surface of one of the flat surface portions or side surface portions, fused portions located at boundaries of said flat surface portions and said side surface portions, said fused portions formed by bonding one of said flat surface portions and an adjacent side surface portion; and at least one non-fused portion located in a boundary of said flat surface portion and said side surface portion and surrounded by said fused portion, wherein said fastener comprises a male portion having a base portion located on one of said flat surface portions or said side surface portions, the base portion having a projected thread extending in a longitudinal direction, the fastener further comprising a female portion having a base portion located on one of said flat surface portions or said side surface portions, the base portion having an engaging groove detachably engaged with the projected thread to extend in a longitudinal direction, wherein the base portions of said male portion and said female portion are both bonded to a single one of said flat surface portions and said side surface portions, so that the projected thread and the engaging groove face each other, wherein a cut-tape is located between the base portion of the male portion and the base portion of the female portion on the flat surface portion or the side surface portion, and an end of the cut-tape is adjacent to the fused portion, wherein the flat surface portion or side surface portion on which the cut-tape is located has a tab portion for opening the bag at a position corresponding to at least one end in a length direction of the cut-tape by forming cut-in portions with the end of the cut-tape being the center thereof so that a portion of the cut-tape is separate from the flat surface portion or side surface portion, the tab portion located on the non-fused portion. 2. The fastener bag according to claim 1, wherein said pair of flat surface portions and said pair of side surface portions constitute a tubular bag body having both ends opened as end openings, one of the end openings of the bag body is closed by a bottom surface portion, and the bottom surface portion has a flat shape. 3. The fastener bag according to claim 1, wherein said fastener and said cut-tape extend in a horizontal direction of the fastener bag. 4. The fastener bag according to claim 1, wherein said fastener and said cut-tape extend in an oblique direction with respect to an end edge of the flat surface portion or side surface portion on which the fastener and the cut-tape are located. 5. A fastener bag comprising: a pair of opposed flat surface portions, a pair of side surface portions located between both side edges of the flat surface portions, the side surface portions being folded inward to provide a gusset-type packaging bag, a bottom surface portion having a flat shape, a fastener for opening or closing the packaging bag, the fastener located on an inner surface of at least one of the flat surface portions or the side surface portions, fused portions located at boundaries of said flat surface portions, said side surface portions, and said bottom surface portion, said fused portions formed by bonding one of said flat side portions, or bottom surface portions to an adjacent flat or side surface portion; and at least one non-fused portion located in a boundary of at least one of said flat surface portion, said side surface portion, and said bottom surface portion, said non-fused portion being surrounded by said fused portion, wherein said pair of flat surface portions and said pair of side surface portions constitute a tubular bag body having two end openings, one of the end openings of the bag body being closed by said bottom surface portion, said bag body being fused to said bottom surface portion at boundary portions of the bag body and the bottom surface portion by bonding the bag body and the bottom surface portion, wherein said fastener comprises a male portion having a base portion located on one of said flat surface portions or said side surface portions, the base portion having a projected thread extending in a longitudinal direction, the fastener further comprising a female portion having a base portion located on one of said flat surface portions or said side surface portions, the base portion having an engaging groove detachably engaged with the projected thread to extend in a longitudinal direction, wherein the base portions of said male portion and said female portion are both bonded to a single one of said flat surface portions and said side surface portions, so that the projected thread and the engaging groove face each other, wherein a cut-tape is located between the base portion of the male portion and the base portion of the female portion on the flat surface portion or the side surface portion, wherein the flat surface portion or side surface portion on which the cut-tape is located has a tab portion for opening the bag at a position corresponding to at least one end of the cut-tape by forming cut-in portions with the end of the cut-tape being the center thereof so that a portion of the cut-tape is separate from the flat surface portion or side surface portion, the tab portion located on the non-fused portion. 6. The fastener bag according to claim 5, wherein said fastener and said cut-tape extend in a vertical direction of the fastener bag. 7. The fastener bag according to claim 5, wherein said fastener and said cut-tape extend in an oblique direction with respect to an end edge of the flat surface portion or side surface portion on which the fastener and the cut-tape are located.
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이 특허에 인용된 특허 (13)
Hogan John F. ; Yeager James W., Bag with perforated opening and reinforcing patch.
Brnstrup Hans J. (Lengerich DEX) Huckriede Klaus (Lengerich DEX) Ktter Norbert (Tecklenburg DEX), Packing container made from a flexible material in the form of a sack or bag.
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