US20220232939A1 - Zipper structure for suitcases, and trolley bag - Google Patents

Zipper structure for suitcases, and trolley bag Download PDF

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Publication number
US20220232939A1
US20220232939A1 US17/659,481 US202217659481A US2022232939A1 US 20220232939 A1 US20220232939 A1 US 20220232939A1 US 202217659481 A US202217659481 A US 202217659481A US 2022232939 A1 US2022232939 A1 US 2022232939A1
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US
United States
Prior art keywords
zipper
rubber strip
strip
fixing coil
lining
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US17/659,481
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English (en)
Inventor
Yishun Hou
Qun Yu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Merit Technologies Fujian Co Ltd
Original Assignee
Merit Technologies Fujian Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Merit Technologies Fujian Co Ltd filed Critical Merit Technologies Fujian Co Ltd
Publication of US20220232939A1 publication Critical patent/US20220232939A1/en
Priority to US18/475,069 priority Critical patent/US20240008615A1/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C13/00—Details; Accessories
    • A45C13/10—Arrangement of fasteners
    • A45C13/1023—Arrangement of fasteners with elongated profiles fastened by sliders
    • A45C13/103—Arrangement of zip-fasteners
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C13/00—Details; Accessories
    • A45C13/30—Straps; Bands

Definitions

  • the present invention relates to the technical field of suitcase, especially to a zipper structure for suitcases, and a trolley bag.
  • a trolley bag refers to a suitcase with a trolley handle and rollers. Because of the rollers at the bottom, the user can drag it directly, which is very convenient and labor-saving to use.
  • the trolley bags on the market can be roughly divided into two types: zipper trolley bags (referred to as zipper suitcases) and frame trolley bags (referred to as frame suitcases).
  • the zipper suitcase is lighter in weight and is deeply loved by people.
  • the zipper needs to be manually sewn during the current manufacturing, which requires more manpower and cannot realize automatic production.
  • the present invention provides a zipper structure for suitcases, and a trolley bag which can be automatically produced.
  • a zipper structure for suitcases including a zipper strip.
  • the zipper strip includes a front chain belt and a rear chain belt, and also includes a front rubber strip and a rear rubber strip.
  • the front rubber strip is bonded on the front case of the suitcase by thermal pressing.
  • the rear rubber strip is bonded on the rear case of the suitcase by thermal pressing.
  • the front chain belt is connected to the front rubber strip through the front zipper fixing coil.
  • the rear chain belt is connected to the rear rubber strip through the rear zipper fixing coil.
  • first extension portion and a second extension portion are arranged at intervals on the front rubber strip.
  • a first clamping slot capable of receiving the insertion of the front case is formed between the first extension portion and the second extension portion.
  • a third extension portion and a fourth extension portion are arranged on the rear rubber strip at intervals.
  • a second clamping slot is formed between the third extension portion and the fourth extension portion, into which the rear case can be fitted and inserted.
  • a first locking strip portion of the front zipper fixing coil is inserted into a first locking groove of the front rubber strip.
  • the second locking strip portion of the rear zipper fixing coil is inserted into a second locking groove of the rear rubber strip.
  • the zipper structure also includes a front lining fixing coil and a rear lining fixing coil.
  • the front lining fixing coil is connected to a front lining of the suitcase.
  • the rear lining fixing coil is connected to a rear lining of the suitcase.
  • the front rubber strip is provided with a third clamping groove into which a third clamping strip portion of the front lining fixing coil is inserted.
  • the rear rubber strip is provided with a fourth clamping groove into which a fourth clamping strip portion of the rear lining fixing coil is inserted.
  • the front rubber strip is provided with a recessed portion.
  • the rear rubber strip is provided with a protrusion portion. When the zipper strip is closed, the recessed portion and the protrusion portion are engaged together.
  • the front lining fixing coil is sewn on the front lining.
  • the rear lining fixing coil is sewn on the rear lining.
  • the invention also provides a trolley bag, which utilizes any of the aforementioned zipper structures for suitcases.
  • the trolley bag further includes a rear cover.
  • the rear cover is arranged on the trolley bag.
  • the rear cover is configured to cover a joint seam of the front rubber strip and the rear rubber strip. Two ends of the rear cover are foot nails that play a supporting role.
  • a middle part of the rear cover is a soft rubber portion.
  • a plurality of decorative strips arranged vertically are provided on an outer surface of the trolley bag.
  • the decorative strip is blade-shaped.
  • the invention cancels the traditional manual sewing by improving the product structure, so that the zipper suitcase can be automatically produced.
  • Conventional soft strips are replaced by hard front and rear strips.
  • a protrusion portion is disposed on the front rubber strip, and a recessed portion is disposed on the rear rubber strip, so that the zipper suitcase is as strong as the frame suitcase.
  • the thickness and cross-sectional shape of the front rubber strip and the rear rubber strip can be adjusted according to sizes of the case of the suitcases.
  • FIG. 1 is a three-dimensional schematic diagram of the trolley bag of the present invention.
  • FIG. 2 is an exploded view of the trolley bag of the present invention.
  • FIG. 3 is a cross-sectional schematic diagram of the trolley bag of the present invention.
  • FIG. 4 is an enlarged schematic view of the structure at X in FIG. 3 .
  • FIG. 5 is a schematic diagram of the front rubber strip and the rear rubber strip in embodiment one of the present invention.
  • FIG. 6 is a schematic diagram of the second front rubber strip and the second rear rubber strip in the embodiment two of the present invention.
  • FIG. 7 is another three-dimensional schematic diagram of the trolley bag of the present invention.
  • a trolley bag includes a case, a wheel set 30 , a first handle 40 , a customs lock 50 , a slider pull tab 60 , a second handle 70 and a pair of rear covers 8 .
  • the case includes a front case 10 and a rear case 20 .
  • a front lining 91 is provided inside the front case 10 .
  • a rear lining 92 is provided inside the rear case 20 .
  • a trolley handle is provided on the rear case 20 .
  • the wheel set 30 is provided at the bottom of the front case 10 and the rear case 20 .
  • a first handle 40 is provided on the top of the front case 10 .
  • the customs lock 50 is provided on one side of the front case 10 .
  • the slider pull tab 60 is used in conjunction with the customs lock 50 .
  • the second handle 70 is disposed on the side of the rear case 20 on the same side as the side where the customs lock 50 is located.
  • a pair of rear covers 8 are spaced apart on the side of the trolley bag opposite the side where the customs lock 50 is located.
  • One end of the rear cover 8 is connected to the front case 10 .
  • the other end of the rear cover 8 is connected to the rear case 20 .
  • the two ends of the rear cover 8 are foot nails 81 playing a role of support.
  • the middle part of the rear cover 8 is the soft rubber portion 82 .
  • the trolley bag can be opened at any angle without broken because of the enhanced deformation of the soft rubber portion 82 .
  • the trolley bag also includes a zipper structure for suitcases.
  • the zipper structure for suitcases includes a front rubber strip 1 , a rear rubber strip 2 , a zipper strip 3 , a front zipper fixing coil 4 , a rear zipper fixing coil 5 , and a front lining fixing coil 6 and a rear lining fixing coil 7 .
  • the zipper strip 3 includes a front chain belt 31 , a rear chain belt 32 engaging the front chain belt 31 , and a slider 33 slidably connected between the front chain belt 31 and the rear chain belt 32 .
  • the front rubber strip 1 is provided with a first extension portion 14 and a second extension portion 15 at intervals.
  • a first clamping slot 16 is formed into which a first insertion portion 101 of the front case 10 can be fitted and inserted.
  • the rear rubber strip 2 is provided with a third extension portion 24 and a fourth extension portion 25 at intervals.
  • a second clamping slot 26 is formed between the third extension portion 24 and the fourth extension portion 25 , into which a second insertion portion 201 of the rear case 20 can be fitted and inserted.
  • the front zipper fixing coil 4 has a first locking portion 41 and a first connecting strip portion 42 which are connected to each other.
  • the front rubber strip 1 is provided with a first locking groove 11 into which the first locking strip portion 41 of the front zipper fixing coil 4 can be inserted.
  • a first connecting strip portion 42 of the front zipper fixing coil 4 is connected to the front chain belt 31 .
  • the rear zipper fixing coil 5 has a second locking strip portion 51 and a second connecting strip portion 52 which are connected to each other.
  • the rear rubber strip 2 is provided with a second locking groove 21 into which the second locking strip portion 51 of the rear zipper fixing coil 5 can be inserted.
  • the second connecting strip portion 52 of the rear zipper fixing coil 5 is connected to the rear chain belt 32 .
  • the front lining fixing coil 6 has a third locking strip portion 61 and a third connecting strip portion 62 which are connected to each other.
  • the front rubber strip 1 is provided with a third locking groove 12 into which the third locking strip portion 61 of the front lining fixing coil 6 can be inserted.
  • the third connecting strip portion 62 of the front lining fixing coil 6 is connected to the front lining 91 .
  • the rear lining fixing coil 7 has a fourth connecting strip portion 71 and a fourth connecting strip portion 72 .
  • the rear rubber strip 2 is provided with a fourth locking groove 22 into which the fourth locking strip portion 71 of the rear lining fixing coil 7 can be inserted.
  • the fourth connecting strip portion 72 of the rear lining fixing coil 7 is connected to the rear lining 92 .
  • the slider pull tab 60 is attached to the slider 33 .
  • the front rubber strip 1 and the rear rubber strip 2 are rigid rubber strips.
  • the front rubber strip 1 is provided with a recessed portion 13 .
  • the rear rubber strip 2 is provided with a protrusion portion 23 .
  • the connection position is covered by the rear cover 8 .
  • the rear cover 8 can also prevent the zipper strip 3 from being disengaged from the connection position.
  • a plurality of decorative strips 80 arranged vertically are provided on the outer surface of the trolley bag.
  • the decorative strip 80 is blade-shaped. Irregular endings of the decorative strip make the decorative strip has a three-dimensional appearance.
  • the front rubber strip 1 and the rear rubber strip 2 are extrusion molding parts. It is formed into the same shape as the case by thermal pressing.
  • the front rubber strip 1 is assembled on the front case 10 , and the front rubber strip 1 and the front case 10 are bonded together by thermocompression.
  • the rear rubber strip 2 is assembled on the rear case 20 , and the rear rubber strip 2 and the rear case 20 are bonded together by thermocompression. This replaces the traditional lathe technology for zipper suitcase which has to lathe three-layer of stripes.
  • the first connecting strip portion 42 of the front zipper fixing coil 4 is sewn on the front chain belt 31
  • the second connecting strip portion 52 of the rear zipper fixing coil 5 is sewn on the rear chain belt 32 , which realize automatic and unmanned sewing. After the machine is adjusted, the sew can be automatic. The sew length is based on the circumference of the case of the trolley bag. Then, the first locking strip portion 41 of the front zipper fixing coil 4 is inserted into the first locking groove 11 of the front rubber strip 1 , and the second locking strip portion 51 of the rear zipper fixing coil 5 is inserted into the second locking groove 21 of the rear rubber strip 2 to fasten the zipper. This replaces the traditional process of sewing the zipper of the zipper suitcase.
  • the front lining 91 is sewn on the third connecting strip portion 62 of the front lining fixing coil 6
  • the rear lining 92 is sewn on the fourth connecting strip portion 72 of the rear lining fixing coil 7 , so that automatic unmanned production can be realized during sewing.
  • the sew can be automatic.
  • the sew length is based on the circumference of the case of the trolley bag.
  • the third locking strip portion 61 of the front lining fixing coil 6 is inserted into the third locking groove 12 of the front rubber strip 1
  • the fourth locking portion 71 of the rear lining fixing coil 7 is inserted into the fourth locking groove 22 of the rear rubber strip 2 to fasten the lining.
  • the difference between this embodiment and the Embodiment One is that: in this embodiment, the thickness and cross-sectional shape of the front rubber strip 1 and the rear rubber strip 2 are adjusted according to the size of the box suitcase. Specifically, the second front rubber strip 1 A and the second rear rubber strip 2 A are used.

Landscapes

  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Slide Fasteners (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
US17/659,481 2019-12-16 2022-04-15 Zipper structure for suitcases, and trolley bag Pending US20220232939A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US18/475,069 US20240008615A1 (en) 2019-12-16 2023-09-26 Zipper structure for suitcases, and trolley bag

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201922246100.3U CN210901804U (zh) 2019-12-16 2019-12-16 一种用于箱包的拉链结构和拉杆箱
CN201922246100.3 2019-12-16
PCT/CN2020/132562 WO2021121014A1 (zh) 2019-12-16 2020-11-30 一种用于箱包的拉链结构和拉杆箱

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/132562 Continuation WO2021121014A1 (zh) 2019-12-16 2020-11-30 一种用于箱包的拉链结构和拉杆箱

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/475,069 Continuation-In-Part US20240008615A1 (en) 2019-12-16 2023-09-26 Zipper structure for suitcases, and trolley bag

Publications (1)

Publication Number Publication Date
US20220232939A1 true US20220232939A1 (en) 2022-07-28

Family

ID=71355340

Family Applications (1)

Application Number Title Priority Date Filing Date
US17/659,481 Pending US20220232939A1 (en) 2019-12-16 2022-04-15 Zipper structure for suitcases, and trolley bag

Country Status (6)

Country Link
US (1) US20220232939A1 (zh)
EP (1) EP4029403B1 (zh)
JP (1) JP7454168B2 (zh)
CN (1) CN210901804U (zh)
AU (2) AU2020404201A1 (zh)
WO (1) WO2021121014A1 (zh)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6345709B1 (en) * 2000-06-16 2002-02-12 Ruey Yuan Co., Ltd. Suitcase with two u-shaped rubber strips
JP3822560B2 (ja) 2002-12-11 2006-09-20 株式会社協和 合成樹脂製カバン
IT1403686B1 (it) * 2011-02-07 2013-10-31 Valigeria Roncato Spa Valigia con attacco per divisorio in doppio materiale.
EP2730192B1 (en) * 2012-11-13 2019-04-24 Samsonite IP Holdings S.a.r.l Frame structure for a luggage item
CN103040224A (zh) * 2012-12-21 2013-04-17 袁毅 一种能防撬的箱包拉链
TWM462020U (zh) 2013-02-08 2013-09-21 Tang ting ting 具保護罩之行李箱結構
CN204617249U (zh) * 2015-05-18 2015-09-09 芊茂（浙江）拉链有限公司 用于箱包上尼龙双层齿拉链和尼龙单层齿反穿拉链的链带
CN204969939U (zh) * 2015-09-24 2016-01-20 广州市汇泰隆铝制品有限公司 箱包用的防盗拉链结构
JP3216841U (ja) 2018-04-03 2018-06-28 株式会社モダンリズム スーツケース
CN109497673A (zh) * 2019-01-14 2019-03-22 芊茂（浙江）拉链有限公司 一种组合式拉杆箱的联结结构和使用方法
CN211833206U (zh) * 2020-04-03 2020-11-03 美律科技（福建）有限公司 一种新型框体拉链箱

Also Published As

Publication number Publication date
EP4029403A1 (en) 2022-07-20
AU2023237102A1 (en) 2023-10-12
JP2022553747A (ja) 2022-12-26
WO2021121014A1 (zh) 2021-06-24
AU2020404201A1 (en) 2022-05-12
EP4029403A4 (en) 2023-10-25
EP4029403B1 (en) 2024-02-07
JP7454168B2 (ja) 2024-03-22
CN210901804U (zh) 2020-07-03

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