ZIPPER, OPENING STRUCTURE AND PACKAGING BOX

• Main Author: NAGAHARA KOTARO
• Format: Patent
• Language: English; Japanese
• Published: 02.03.2023
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; STORING; TRANSPORTING

To provide a zipper capable of suppressing unintended breakage and improving aesthetic properties after breakage.SOLUTION: There is provided a zipper 20 including a cut group 21, the cut group 21 being formed such that a first cut 22 and a pair of second cuts 23 are cut into a paper material with an interval in an opening direction. The first cut 22 protrudes in one direction in a derailment direction and is formed in a mountain shape that is symmetrical with respect to a first center line CL1, and the pair of second cuts 23 are arranged on both sides of the first cut 22 in the opening direction, and are symmetrical about the first cut 22, each protruding in one direction in the derailment direction and formed in a mountain shape that is asymmetric with respect to a second center line CL2, and both ends 25 of the first cut 22 and inner ends 26 of the pair of second cuts 23 are formed at positions separated in the opening direction, and both ends 25 of the first cut 22, the inner ends 26 of the pair of second cuts 23, and outer ends 27 of the pair of second cuts 23 are formed at positions shifted from each other in the derailment direction.SELECTED DRAWING: Figure 3 【課題】意図しない破断を抑制しながら破断後の美粧性を良好にすることができるジッパーを提供する。【解決手段】第１切目２２と一対の第２切目２３とが開封方向に間隔をあけて紙材に切り込まれて切目群２１を形成し、切目群２１から構成されるジッパー２０である。第１切目２２は、脱線方向の一方に突出し、第１中心線ＣＬ１を基準に線対称となる山型に形成され、一対の第２切目２３は、第１切目２２を挟んで開封方向の両側に配置され、第１切目２２を中心に線対称となる形状とされ、それぞれ脱線方向の一方に突出し、且つ第２中心線ＣＬ２を基準に非対称となる山型に形成され、第１切目２２の両端部２５と、一対の第２切目２３の内端部２６とは、開封方向に離間した位置に形成され、第１切目２２の両端部２５と、一対の第２切目２３の内端部２６と、一対の第２切目２３の外端部２７とは、互いに脱線方向にずれた位置に形成されている。【選択図】図３