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

A zipper tape comprising:

• a first engagement portion;
• a first belt-shaped base continuously provided to the first engagement portion;
• a second engagement portion engageable with the first engagement portion;
• and
• a second belt-shaped base continuously provided to the second engagement portion, wherein
• the second belt-shaped base is shortened in a width direction of the zipper tape in relation to the first belt-shaped base to have a shorter length from a position where the second belt-shaped base is continuously provided to the second engagement portion to one end of the second belt-shaped base in the width direction,
• the first engagement portion includes a first claw and a second claw, the second claw includes a pair of female claws,
• the second engagement portion includes a third claw and a fourth claw, the third claw protrudes toward the other end of the second belt-shaped base in the width direction and has a first inclined surface to be engaged with the first claw,
• a first acute angle is formed between the first inclined surface and a line perpendicular to the second belt-shaped base, and
• a tip end of the third claw is folded toward the second belt-shaped base,
• the fourth claw includes a first male claw and a second male claw protruding toward the one end and the other end of the second belt-shaped base in the width direction, respectively, and having a second inclined surface and a third inclined surface, respectively, to be engaged with each of the pair of female claws, respectively,
• a tip end of each of the first male claw and the second male claw is folded toward the second belt-shaped base, and
• the second belt-shaped base is shortened on the one end in the width direction and is not shortened on the other end in the width direction.

A zipper tape comprising:

• a first engagement portion;
• a first belt-shaped base continuously provided to the first engagement portion;
• a second engagement portion engageable with the first engagement portion;
• and
• a second belt-shaped base continuously provided to the second engagement portion, wherein
• the second belt-shaped base is shortened in a width direction of the zipper tape in relation to the first belt-shaped base to have a shorter length from a position where the second belt-shaped base is continuously provided to the second engagement portion to a first end of the second belt-shaped base in a first side of the width direction,
• the first engagement portion includes a pair of female claws,
• the second engagement portion includes a first male claw and a second male claw,
• the pair of female claws each forming a female hook respectively having first inclined surfaces configured to be respectively engaged with the first male claw and the second male claw,
• an angle of each of the first inclined surfaces relative to a line perpendicular to the first belt-shaped base is less than 90 degrees,
• the first male claw forms a first male hook having a second inclined surface configured to be engaged with one of the pair of female claws,
• the second male claw forms a second male hook having a third inclined surface configured to be engaged with the other of the pair of female claws,
• an obtuse angle is formed between the second inclined surface and a line perpendicular to the second belt-shaped base,
• an acute angle is formed between the third inclined surface and the line perpendicular to the second belt-shaped base,
• the first belt-shaped base has a first bonding surface being an opposite surface from the surface where the first engagement portion is formed,
• the second belt-shaped base has a second bonding surface being an opposite surface from the surface where the second engagement portion is formed,
• the first bonding surface and the second bonding surface are configured to be bonded to a base film,
• the second belt-shaped base has an unholdable length from the position where the second belt-shaped base is continuously provided to the second engagement portion to the first end,
• the first engagement portion further includes a first hook having a claw protruding only toward a first end of the first belt-shaped base in the first side of the width direction, and
• the second engagement portion further includes a second hook having a claw protruding toward a second end of the second belt-shaped base in a second side of the width direction, and
• the first hook and the second hook are configured to be engaged with each other without supporting element.

A zipper tape comprising:

• a first engagement portion;
• a first belt-shaped base continuously provided to the first engagement portion;
• a second engagement portion engageable with the first engagement portion;
• and
• a second belt-shaped base continuously provided to the second engagement portion,
• wherein the second belt-shaped base is shortened in a width direction of the zipper tape in relation to the first belt-shaped base to have a shorter length from a position where the second belt-shaped base is continuously provided to the second engagement portion to one end of the second belt-shaped base in the width direction,
• the first engagement portion includes a first claw and a second claw, the second claw includes a pair of female claws,
• the second engagement portion includes a third claw and a fourth claw,
• the third claw protrudes toward the other end of the second belt-shaped base in the width direction and has a first inclined surface to be engaged with the first claw,
• a first acute angle is formed between the first inclined surface and a line perpendicular to the second belt-shaped base, and
• a tip end of the third claw is folded toward the second belt-shaped base,
• the fourth claw includes a first male claw and a second male claw protruding toward the one end and the other end of the second belt-shaped base in the width direction, respectively, and having a second inclined surface and a third inclined surface, respectively, to be engaged with each of the pair of female claws, respectively
• a second obtuse angle is formed between the second inclined surface and the line perpendicular to the second belt-shaped base,
• a third acute angle is formed between the third inclined surface and the line perpendicular to the second belt-shaped base, and
• the second belt-shaped base is shortened on one end in the width direction and is not shortened on the other end of the width direction.