WO2011029223A1 - Wheel chassis and shopping bag with detachable wheel chassis - Google Patents
Wheel chassis and shopping bag with detachable wheel chassis Download PDFInfo
- Publication number
- WO2011029223A1 WO2011029223A1 PCT/CN2009/073800 CN2009073800W WO2011029223A1 WO 2011029223 A1 WO2011029223 A1 WO 2011029223A1 CN 2009073800 W CN2009073800 W CN 2009073800W WO 2011029223 A1 WO2011029223 A1 WO 2011029223A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shopping bag
- wheel chassis
- chassis
- supporting portion
- receiving
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C13/00—Details; Accessories
- A45C13/38—Luggage carriers
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C3/00—Flexible luggage; Handbags
- A45C3/04—Shopping bags; Shopping nets
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C5/00—Rigid or semi-rigid luggage
- A45C5/14—Rigid or semi-rigid luggage with built-in rolling means
- A45C5/143—Rigid or semi-rigid luggage with built-in rolling means detachable
Definitions
- the present invention relates to an improvement on a shopping bag, more specifically, to a shopping bag with a detachable wheel chassis which is cost effective, labor-saving and much more convenient.
- the present invention also relates to such a wheel chassis.
- the assembly needs a platform insert made of plastic material to be placed in the bag, but a complicated injection molding process is required to form the platform insert, and therefore would be a difficulty for mass production in terms of production time and cost;
- US patent application No. 12/055,394 was filed by the present applicant to claim a shopping bag with a detachable wheel chassis, which comprises a bag body having bag handles and a wheel chassis connected with the shopping bag body in an inserting manner.
- Said wheel chassis includes a shaft, two wheels rotatably mounted on two ends of the shaft by means of fixing elements, and a supporting assembly arranged on the shaft including a supporting rod, two convex supporting members and a bracket.
- This shopping bag is characterized by the fact that the bag body is provided with a receiving portion on its bottom and an inserting element detachably disposed in the receiving portion of the bag body.
- An object of the invention is to provide a shopping bag with a detachable wheel chassis which does not require any soldering process for making the wheel chassis and which is not only able to provide the convenience to use and find a wide range of applications, but also is low in manufacturing cost and complexity.
- a shopping bag which comprises a bag body having bag handles and a receiving portion disposed on the bottom of the bag body; and a two-wheel chassis detachably configured to bear and hold the bag body on the chassis, wherein the chassis is made of a piece of resilient metal wire and has a configuration having a downwardly extended supporting portion, two oppositely and inwardly inserting portions adapted to be received in the receiving portion of the bag body, and two end portions on which the two wheels are rotatably mounted.
- the inserting portions are inserted into the receiving portion of the bag body.
- the receiving portion is an insert-receiving member fixed onto the bottom of the bag body.
- the receiving portion defines a receiving space between a part of the bottom of the bag body and the insert-receiving member to form an insert-receiving pocket with two open ends for receiving the inserting portions of the chassis. In this way, assembly of the shopping bag of the invention is accomplished by simply inserting the inserting portions into the insert-receiving pocket.
- the chassis which bears the bag body is made of a piece of resilient metal wire and manufactured to have a configuration having a downwardly extended supporting portion, two oppositely and inwardly inserting portions adapted to be received in the receiving portion of the bag body, and two end portions on which the two wheels are rotatably mounted.
- Iron wire may be used as the resilient metal wire for the sake of cost efficiency.
- other metal wires such as stainless steel wire or PVC-coated wire are possible.
- the metal wire is of a substantially V-shaped configuration and has a middle part that is oppositely and inwardly curved to form two inserting portions of the chassis, and each of the inserting portions can be fully inserted from the corresponding open end into the receiving portion disposed on the bottom of the bag body and be held snugly in the receiving portion.
- the V-shaped configuration further has a downwardly extended convex supporting portion, and two downwardly and outwardly extended end portions on which the two wheels are rotatably mounted.
- the metal wire is of a substantially rectangular configuration and has a downwardly extended supporting portion of rectangular shape, two oppositely and inwardly curved inserting portions, and two downwardly and inwardly extended end portions on which the two wheels are rotatably mounted.
- an advantageous feature of the invention is that the inserting portions are shaped and sized manually so as to be received in the insert-receiving member snugly.
- a protection layer such as a plastic layer
- the plastic layer is made of PVC.
- a plastic or foam tube can be sleeved on the supporting portion to provide the same protection.
- a yet advantageous feature of the invention is that the insert-receiving member is fixed onto the bottom of the bags of different sizes, allowing a chassis of one standard size can be adapted to suit for various types of shopping bags of the different sizes.
- the chassis is completely made of a piece of resilient metal wire.
- the supporting portion and the two wheels can be arranged on the same level, allowing the shopping bag of the invention to stay immovable even on a smooth floor.
- FIG. 1 is a perspective view showing a shopping bag of the present invention with inserting portions being inserted into a bag body of the shopping bag;
- FIG. 2 is a schematic view of an insert-receiving pocket with two open ends formed at the bottom of the bag body of the shopping bag;
- FIG. 3 is a perspective view of a two-wheel chassis of the shopping bag according to a first embodiment of the invention
- FIG. 4 is a bottom view of the shopping bag, showing that one inserting portion has been inserted into the receiving portion while the other inserting portion is going to be inserted into the receiving portion;
- FIG. 5 is a bottom view of the shopping bag, showing that the two inserting portions have already been inserted into the receiving portion;
- FIG. 6 is a perspective view of the two-wheel chassis of the shopping bag having a plastic layer wrapped onto the supporting portion;
- Fig. 7 is a perspective view of a two-wheel chassis of the shopping bag according to a second embodiment of the invention.
- Fig. 8 is a perspective view of the supporting portion of Fig. 7 showing a plastic tubing is sleeved on the supporting portion.
- the shopping bag comprises a bag body 1 having two handles 3 and a two-wheel chassis 2.
- the bag body 1 may be made from a material selected from non-woven fabric, paper, plastic or other materials known in the art.
- the bag body 1 of the embodiment is made of paper. It is understood that the handles 3 of the bag body 1 should be long enough to allow convenient and easy dragging of the shopping bag.
- a receiving portion 4 is provided on the bottom of the bag body 1.
- said receiving portion 4 is an insert-receiving member fixed onto the bottom of the bag body 1 by an adhesive, staples, sewing or the like.
- the receiving portion 4 would define a receiving space between a part of the bottom of the bag body 1 and the insert-receiving member to form an insert-receiving pocket 41 with two open ends for receiving the inserting portions.
- the receiving portion 4 is a pocket which can be fixed instantly onto the bottom of the bag through adhesive in the case that the shopping bag is made of a paper or plastic material, or in a sewing manner in the case that the shopping bag is made of a fabric material.
- the two-wheel chassis 2 constructed according to a first embodiment of the invention is made of a piece of resilient metal wire.
- iron wire is selected as the metal wire.
- other metal wires or metal alloy wires such as stainless steel wire or PVC-coated wire, are possible.
- the iron wire is folded to have a generally V-shaped configuration, which comprises two free end portions and a tip end portion where a convex supporting portion 6 is formed by downwardly curving the tip end portion.
- the height of the supporting portion 6 may be determined by the size of the wheels 7 at the two free end portions.
- inserting portions 5 are formed in the middle part of the V-shaped iron wire by oppositely and inwardly curving the iron wire.
- each of the inserting portions 5 comprises an inserting member 51 or 5 which is shaped and sized to be received in the receiving portion 4.
- the two inserting members 51 and 5 are symmetrical about a central line A- A of the V-shaped iron wire, and the inserting members 51 and 5 have a width less than the insert-receiving member.
- two connecting elements 8 configured as two rigid axles are formed by downwardly and outwardly curving the free end portions of the V-shaped iron wire, and a pair of wheels 7 are rotatably mounted on the connecting members 8 by a method known in the prior art, such as by using screws and nuts or glue plastic cap.
- the length of the two-wheel chassis 2 between the supporting portion 6 and the connecting member 8 is 25cm - 30cm.
- the wheel chassis of the invention does not have this problem because of the resilient characteristic of the metal wire.
- the wheel chassis is designed such that the chassis of one standard size would be able to fit many bags having a bottom of different sizes, because a standard size insert-receiving member can be affixed to shopping bags of different sizes.
- Figures 4 and 5 further illustrate how the inserting portions 5 are inserted into the receiving portion 4 of the bag body 1.
- insertion of one of the inserting members 51 and 5 from one open end of the insert-receiving pocket 41 into the insert-receiving pocket 41 is implemented, and then the other inserting member 51 or
- the inserting members 51 and 5 are sized and shaped such that these inserting members are snugly inserted into the receiving portion without the need of additional fastening therebetween. This ensures the avoidance of use of any fastening mechanism such as Velcro mechanism to fasten the inserting portions 5 and the receiving portion 4, which is commonly found in the prior art, while the wheel chassis is not disengaged from the receiving portion 4. Such a design also ensures that a relative displacement between the inserting portions 5 and the receiving portion 4 would not occur.
- the supporting portion 6 of the chassis advantageously has a plastic layer 10, in order to prevent a smooth floor from being scratched.
- the plastic layer may be made of PVC.
- any other materials such as foam, plastic such as PP and PE is possible.
- the V-shaped iron wire further comprises a remaining portion 9 which serves in combination with the inserting portions 5 to support the bag body 1 and the cargoes contained therein.
- the shopping bag of the invention can be dragged to move along the floor.
- the shopping bag is maintained immovable even on a smooth floor if the convex supporting portion
- Fig. 7 illustrates a two-wheel chassis 20 of the shopping bag according to a second embodiment of the invention.
- the two-wheel chassis 20 is also made of a piece of resilient metal wire which is folded to have a substantially rectangular configuration.
- the two-wheel chassis 20 has a downwardly extended supporting portion 22 of rectangular shape, two oppositely and inwardly curved inserting portions 24, and two downwardly and inwardly extended end portions 26 on which the two wheels are rotatably mounted.
- the two-wheel chassis 20 further comprises a remaining portion 28 which serves in combination with the inserting portions 24 to support the bag body and the cargoes contained therein.
- Figure 8 illustrates that the supporting portion 22 of the chassis 20 is sleeved with a plastic tubing 21, which provides the same function of preventing a smooth floor from being scratched as done by the plastic layer 10 of the first embodiment above.
- the plastic tubing 21 is pre-sleeved onto the resilient metal wire before it is bent to form the supporting portion 22.
- any other materials such as foam is possible for the tubing 21.
- This two-wheel chassis 20 of the second embodiment is similar in use and operation to that disclosed in the first embodiment.
- the two-wheel chassis according to the invention is applicable not only to a shopping bag, but also to an article having a relatively flat bottom, such as a container, a box or a backpack.
Landscapes
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
- Handcart (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1203871.7A GB2485514B (en) | 2009-09-08 | 2009-09-08 | Wheel chassis and shopping bag with detachable wheel classis |
PCT/CN2009/073800 WO2011029223A1 (en) | 2009-09-08 | 2009-09-08 | Wheel chassis and shopping bag with detachable wheel chassis |
HK09110556.6A HK1134399A2 (en) | 2009-09-08 | 2009-11-12 | Wheel chassis and shopping bag with detachable wheel chassis |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2009/073800 WO2011029223A1 (en) | 2009-09-08 | 2009-09-08 | Wheel chassis and shopping bag with detachable wheel chassis |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011029223A1 true WO2011029223A1 (en) | 2011-03-17 |
Family
ID=42134625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2009/073800 WO2011029223A1 (en) | 2009-09-08 | 2009-09-08 | Wheel chassis and shopping bag with detachable wheel chassis |
Country Status (3)
Country | Link |
---|---|
GB (1) | GB2485514B (en) |
HK (1) | HK1134399A2 (en) |
WO (1) | WO2011029223A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018197899A1 (en) * | 2017-04-27 | 2018-11-01 | Paua Trading Limited | Protective case or cover |
US11576473B2 (en) | 2015-10-21 | 2023-02-14 | Paua Trading Limited | Case or cover for hobby equipment |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6293569B1 (en) * | 1998-06-10 | 2001-09-25 | Catherine Bertin | Trundle for making quick-assemble mobile shopping bag |
CN2572814Y (en) * | 2002-09-10 | 2003-09-17 | 上海奥威实业有限公司 | Folding shopping bag |
GB2444596A (en) * | 2006-10-26 | 2008-06-11 | Donald Milne Downie | Auxiliary wheels for a carton or bag |
CN201213530Y (en) * | 2007-11-20 | 2009-04-01 | 孙伟伦 | Shopping bag with detachable wheel carrier |
CN201216271Y (en) * | 2008-07-09 | 2009-04-08 | 管昌国 | Shopping bag with pulley |
-
2009
- 2009-09-08 GB GB1203871.7A patent/GB2485514B/en not_active Expired - Fee Related
- 2009-09-08 WO PCT/CN2009/073800 patent/WO2011029223A1/en active Application Filing
- 2009-11-12 HK HK09110556.6A patent/HK1134399A2/en not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6293569B1 (en) * | 1998-06-10 | 2001-09-25 | Catherine Bertin | Trundle for making quick-assemble mobile shopping bag |
CN2572814Y (en) * | 2002-09-10 | 2003-09-17 | 上海奥威实业有限公司 | Folding shopping bag |
GB2444596A (en) * | 2006-10-26 | 2008-06-11 | Donald Milne Downie | Auxiliary wheels for a carton or bag |
CN201213530Y (en) * | 2007-11-20 | 2009-04-01 | 孙伟伦 | Shopping bag with detachable wheel carrier |
CN201216271Y (en) * | 2008-07-09 | 2009-04-08 | 管昌国 | Shopping bag with pulley |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11576473B2 (en) | 2015-10-21 | 2023-02-14 | Paua Trading Limited | Case or cover for hobby equipment |
US11931645B2 (en) | 2015-10-21 | 2024-03-19 | Paua Trading Limited | Case or cover for hobby equipment |
WO2018197899A1 (en) * | 2017-04-27 | 2018-11-01 | Paua Trading Limited | Protective case or cover |
CN110799062A (en) * | 2017-04-27 | 2020-02-14 | 帕瓦贸易有限公司 | Protective cases or coverings |
US11330877B2 (en) | 2017-04-27 | 2022-05-17 | Paua Trading Limited | Protective case or cover |
US11350715B2 (en) | 2017-04-27 | 2022-06-07 | Paua Trading Limited | Protective case or cover |
US11627787B2 (en) | 2017-04-27 | 2023-04-18 | Paua Trading Limited | Protective case or cover |
Also Published As
Publication number | Publication date |
---|---|
GB2485514B (en) | 2013-10-30 |
GB2485514A (en) | 2012-05-16 |
GB201203871D0 (en) | 2012-04-18 |
HK1134399A2 (en) | 2010-04-23 |
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