Zipper tape-equipped bag body, article housing method for zipper tape-equipped bag body, manufacturing method for zipper tape-equipped bag body, and manufacturing device for zipper tape-equipped bag body

Patent metadata

Field	Value
Publication number	US-11285686-B2
Application number	US-201515312887-A
Country	US
Kind code	B2
Filing date	May 15, 2015
Priority date	May 21, 2014
Publication date	Mar 29, 2022
Grant date	Mar 29, 2022

Abstract

A female belt-shaped base is attached to a bag body at a region from a female hook to a first end near an open end of the bag body and to a second end near a housing space. A male belt-shaped base is attached to the bag body only in a bonding region without being attached at a region from a position where an engagement portion is continuously attached to a first end near the open end of the bag body.

First claim

The invention claimed is:

1. A zipper tape-equipped bag comprising:
a bag body comprising an aperture and a housing space in which an article is housed;
a zipper tape bonded to an inner surface of the bag body and comprising: an engagement portion comprising a pair of a male hook and a female hook engageable with each other; and a pair of first and second belt-shaped bases continuously provided to the engagement portion, wherein
the first belt-shaped base is bonded to the bag body at least at a first end near the aperture of the bag body and a second end near the housing space of the bag body,
the second belt-shaped base is bonded to the bag body at a second end near the housing space of the bag body without being bonded to the bag body from a position where the second belt-shaped base is continuously provided to the engagement portion to a first end near the aperture of the bag body, and
the second belt-shaped base is shortened in a width direction in relation to the first belt-shaped base to have a length from the position where the second belt-shaped base is continuously provided to the engagement portion to the first end near the aperture of the bag body that is 2.0 mm or less, while the bag body extends beyond the second belt-shaped base toward the aperture of the bag body.

2. The zipper tape-equipped bag according to claim 1 , wherein
the male hook or the female hook of the second belt-shaped base comprises claws respectively protruding toward the aperture and the housing space, and
wherein the male hook or the female hook of the first belt-shaped base comprises an engageable claw protruding toward the housing space and configured to engage at least with the claw protruding toward the aperture.

3. The zipper tape-equipped bag according to claim 1 , further comprising:
an opening cut portion provided closer to the housing space with respect to the engagement portion.

4. The zipper tape-equipped bag according to claim 1 , wherein the engagement portion comprises a plurality of engagement portions.

5. The zipper tape-equipped bag according to claim 4 , wherein
at least one of the first belt-shaped base and the second belt-shaped base of the zipper tape comprises a deformable portion that is positioned between the plurality of engagement portions and is bendable in a thickness direction of the at least one of the first belt-shaped base and the second belt-shaped base by a stress smaller than a bending stress to be applied in the thickness direction.

6. The zipper tape-equipped bag according to claim 1 , wherein
at least one of the first belt-shaped base and the second belt-shaped base comprises a rib protruding from a surface of the belt-shaped base opposite from the surface on which the engagement portion is continuously formed.

7. An article housing method of housing an article into the zipper tape-equipped bag according to claim 1 , comprising:
housing the article into the housing space from the aperture of the bag body; and
bringing the engagement portion of the zipper tape into engagement after housing the article.

8. The zipper tape-equipped bag according to claim 1 , wherein
a portion of the bag body to which the first belt-shaped base is bonded and a portion of the bag body to which the second belt-shaped base is bonded are aligned with each other at the aperture of the bag body.

9. The zipper tape-equipped bag according to claim 1 , wherein
the second belt-shaped base is not bonded to the bag body from the position where the second belt-shaped base is continuously provided to the engagement portion to the first end throughout a length of the second belt-shaped base along the aperture of the bag body.

10. The zipper tape-equipped bag according to claim 1 , wherein
the length from the position where the second belt-shaped base is continuously provided to the engagement portion to the first end near the aperture of the bag body is zero.

11. A zipper tape-equipped bag comprising:
a bag body comprising an aperture and a housing space in which an article is housed;
a zipper tape bonded to an inner surface of the bag body and comprising: an engagement portion comprising a pair of a male hook and a female hook engageable with each other; and a pair of first and second belt-shaped bases continuously provided to the engagement portion, wherein
the first belt-shaped base is bonded to the bag body at least from a position where the first belt-shaped base is continuously provided to the engagement portion toward a first end near the aperture of the bag body and a second end near the housing space,
the second belt-shaped base is bonded to the bag body at a second end near the housing space of the bag body without being bonded to the bag body from a position where the second belt-shaped base is continuously provided to the engagement portion to a first end near the aperture of the bag body, and
the second belt-shaped base is shortened in a width direction in relation to the first belt-shaped base to have a length from the position where the second belt-shaped base is continuously provided to the engagement portion to the first end near the aperture of the bag body that is 2.0 mm or less, while the bag body extends beyond the second belt-shaped base toward the aperture of the bag body.

12. The zipper tape-equipped bag according to claim 11 , wherein
the male hook or the female hook of the second belt-shaped base comprises claws respectively protruding toward the aperture and the housing space, and
the male hook or the female hook of the first belt-shaped base comprises an engageable claw protruding toward the housing space and configured to engage at least with the claw protruding toward the aperture.

13. The zipper tape-equipped bag according to claim 11 , further comprising:
an opening cut portion provided closer to the housing space with respect to the engagement portion.

14. The zipper tape-equipped bag according to claim 11 , wherein the engagement portion comprises a plurality of engagement portions.

15. The zipper tape-equipped bag according to claim 14 , wherein at least one of the belt-shaped bases of the zipper tape comprises a deformable portion that is positioned between the plurality of engagement portions and is bendable in a thickness direction of the belt-shaped base by a stress smaller than a bending stress to be applied in the thickness direction.

16. The zipper tape-equipped bag according to claim 11 , wherein
at least one of the first belt-shaped base and the second belt-shaped base comprises a rib protruding from a surface of the belt-shaped base opposite from the surface on which the engagement portion is continuously formed.

17. An article housing method of housing an article into the zipper tape-equipped bag according to claim 11 , comprising:
housing the article into the housing space from the aperture of the bag body; and
bringing the engagement portion of the zipper tape into engagement after housing the article.

18. The zipper tape-equipped bag according to claim 11 , wherein
a portion of the bag body to which the first belt-shaped base is bonded and a portion of the bag body to which the second belt-shaped base is bonded are aligned with each other at the aperture of the bag body.

19. The zipper tape-equipped bag according to claim 11 , wherein
the second belt-shaped base is not bonded to the bag body from the position where the second belt-shaped base is continuously provided to the engagement portion to the first end throughout a length of the second belt-shaped base alo

Assignees

• Idemitsu Unitech Co Ltd

Inventors

• Goto Shuichi
• TODAKA Takumi

Classifications

• B31B70/266

  involving gusset-forming · CPC title

• B31B70/36

  by continuously feeding them to stationary members, e.g. plates, ploughs or cores · CPC title

• B31B2160/10

  rectangular and flat, i.e. without structural provision for thickness of contents · CPC title

• B31B70/262

  involving longitudinally folding, i.e. along a line parallel to the direction of movement · CPC title

• B31B70/645

  Making seals transversally to the direction of movement · CPC title