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US20170181512A1 - Carry-on luggage - Google Patents

Carry-on luggage Download PDF

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Publication number
US20170181512A1
US20170181512A1 US15/342,351 US201615342351A US2017181512A1 US 20170181512 A1 US20170181512 A1 US 20170181512A1 US 201615342351 A US201615342351 A US 201615342351A US 2017181512 A1 US2017181512 A1 US 2017181512A1
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US
United States
Prior art keywords
base layer
carry
luggage
polymeric material
housing
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.)
Abandoned
Application number
US15/342,351
Inventor
Yuan-Hong Liao
Su-Chun WU
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.)
Quest Composite Technology Corp
Original Assignee
Quest Composite Technology Corp
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 Quest Composite Technology Corp filed Critical Quest Composite Technology Corp
Assigned to QUEST COMPOSITE TECHNOLOGY CORPORATION reassignment QUEST COMPOSITE TECHNOLOGY CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LIAO, Yuan-hong, WU, SU-CHUN
Publication of US20170181512A1 publication Critical patent/US20170181512A1/en
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C5/00—Rigid or semi-rigid luggage
    • A45C5/04—Trunks; Travelling baskets
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C5/00—Rigid or semi-rigid luggage
    • A45C5/02—Materials therefor
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C13/00—Details; Accessories
    • A45C13/26—Special adaptations of handles
    • A45C13/262—Special adaptations of handles for wheeled luggage
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C5/00—Rigid or semi-rigid luggage
    • A45C5/03—Suitcases
    • 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
    • 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
    • A45C5/141—Rigid or semi-rigid luggage with built-in rolling means the rolling means being formed by the trunk itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C5/00—Rigid or semi-rigid luggage
    • A45C5/03—Suitcases
    • A45C2005/037—Suitcases with a hard shell, i.e. rigid shell as volume creating element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/04—Cellulosic plastic fibres, e.g. rayon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/554—Wear resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/40—Closed containers
    • B32B2439/46—Bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/40—Closed containers
    • B32B2439/62—Boxes, cartons, cases

Definitions

  • the present invention relates to shoe technology and more particularly, to storage container technology and more particularly, to a carry-on luggage with impact resistance.
  • the base layers of the housings of currently commercially available hard shell carry-on luggage are made by molding. After molding, the surface will be uneven and needed to be polished and then coated with a layer of coating so that the surface can be smooth and shiny.
  • this processing procedure is quite complicated and time-consuming.
  • regular carry-on luggages commonly have poor impact resistance, they tend to crack or deform due to accidental impact during transportation. Therefore, how to improve the above problem is an important issue.
  • the present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a carry-on luggage, which has excellent impact resistance and is practical for high efficient manufacturing.
  • a carry-on luggage comprises a housing, a plurality of wheels and a handle.
  • the housing comprises a base layer and a protective layer.
  • the base layer is made from a thermosetting polymeric material (TS).
  • the protective layer is made from a thermoplastic polymeric material (TP), and covered over at least one surface of the base layer.
  • the protective layer is covered over the outer surface of the base layer.
  • the housing of the carry-on luggage further comprises a protective layer arranged on an inner surface of the base layer.
  • the protective layer is also made from the thermoplastic polymeric material (TP).
  • TP thermoplastic polymeric material
  • thermosetting polymeric material (TS) can be epoxy or polyester.
  • the base layer has contained therein carbon fibers.
  • thermoplastic polymeric material is selected from the group of acrylonitrile-butadiene-styrene (ABS), polypropylene (PP), polycarbonate (PC), polyethylene (PE), thermoplastic Polyurethane (TPU), polyamide (PA) and their composites.
  • ABS acrylonitrile-butadiene-styrene
  • PP polypropylene
  • PC polycarbonate
  • PE polyethylene
  • TPU thermoplastic Polyurethane
  • PA polyamide
  • the base layer is composed of multiple layers.
  • FIG. 1 is a schematic drawing illustrating a carry-on luggage embodying the present invention.
  • FIG. 2 is a sectional view taken along line 2 - 2 of FIG. 1 .
  • FIG. 3 is an enlarged view of Part A of FIG. 2 , illustrating the arrangement of the base layer and the protective layer.
  • FIG. 4 is similar to FIG. 3 , illustrating a multilayer configuration of the base layer.
  • FIG. 5 is a sectional view of a part of a carry-on luggage in accordance with a second embodiment of the present invention, illustrating two protective layers respectively arranged on opposing inner and outer surfaces of a base layer.
  • FIG. 6 is similar to FIG. 5 , illustrating a multilayer configuration of the base layer.
  • the carry-on luggage 1 comprises a housing 2 , a retractable handle 3 , a carrying handle 4 , a bolt lock 5 and a plurality of wheels 6 .
  • the present invention is focused on the reform of the housing 2 .
  • the housing 2 consists of a right half shell 2 A and a left half shell 2 B.
  • the housing 2 is equipped with a zip fastener or the like so that it can be opened or closed. Every half shell comprises a base layer 22 and a protective layer 24 .
  • the base layer 22 is made from a fiber-reinforced thermosetting polymeric material (TS). In fabrication, fibers are mixed in a thermosetting polymeric material (TS), and the mixture is then put in a mold and molded into the desired finished product using vacuum molding technology under a predetermined temperature and pressure.
  • the protective layer 24 is made from a thermoplastic polymeric material (TP) and arranged on an outer surface 222 of the base layer 22 . The protective layer 24 is joined to the base layer 22 using heating, pressuring and vacuum techniques, forming a fixed protective film on the base layer 22 .
  • TP thermoplastic polymeric material
  • the base layer 22 is composed of multiple layers 221 of thermosetting polymeric material (TS), as illustrated in FIG. 4 so that the thickness of the base layer 22 can be increased according to the size of the carry-on luggage 1 , enabling the carry-on luggage 1 to have optimal mechanical strength.
  • the thermosetting polymeric material (TS) can be epoxy or polyester).
  • the fibers can be glass fibers, carbon fibers or artificial fibers. Further, the fibers can be arranged in a uniaxial or braided manner.
  • the thermosetting polymeric material (TS) of the base layer 22 provides the housing 2 with a basic strength.
  • the thermoplastic polymeric material (TP) of the protective layer 24 provides flexibility.
  • this design enhances the impact resistance of the housing 2
  • this design enables the housing 2 to have excellent toughness for dispersing impact force easily so that the carry-on luggage 1 is not easily broken or damaged, and the internal storage items can be well protected.
  • the protective layer 24 of the aforesaid housing 2 is joined to the base layer 22 using a mold and heating, pressuring and vacuum techniques. Further, the protective layer 24 is arranged on the outer surface 222 of the base layer 22 , enabling the housing 2 to provide a smooth shiny surface.
  • the thermoplastic polymeric material (TP) of the protective layer 24 is selected from the group of acrylonitrile-butadiene-styrene (ABS), polypropylene (PP), polycarbonate (PC), polyethylene (PE), thermoplastic Polyurethane (TPU), polyamide (PA) and their composites, having high tension, tough and wear resistance characteristics.
  • the main feature of the present invention is: the base layer 22 that is made by molding using heating, pressuring and vacuum techniques provides the housing 2 a basic strength, and the protective layer 24 that is covered over the outer surface 222 of the base layer 22 enables the housing 2 to have excellent impact resistance and facilitates rapid production of the housing 2 .
  • the housing 2 ′ of this second embodiment comprises a base layer 22 ′ and two protective layers 24 ′.
  • the base layer 22 ′ is made from a fiber-reinforced thermosetting polymeric material (TS).
  • TS thermosetting polymeric material
  • fibers are mixed in a thermosetting polymeric material (TS), and the mixture is then put in a mold and molded into the desired finished product using vacuum molding technology under a predetermined temperature and pressure.
  • the protective layer 24 ′ is made from a thermoplastic polymeric material (TP). Further, the base layer 22 ′ has an outer surface 222 ′ and an opposing inner surface 224 .
  • the two protective layers 24 ′ are respectively molded on the opposing outer surface 222 ′ and inner surface 224 of the base layer 22 ′ using heating, pressuring and vacuum techniques, and covered over the overall outer surface 222 ′ and inner surface 224 of the base layer 22 ′.
  • the design of these two protective layers 24 ′ can protect the both inner and outer sides of the base layer 22 ′, enhancing the impact resistance of the housing 2 ′.
  • the base layer 22 ′ is composed of multiple layers 221 ′ of thermosetting polymeric material (TS), as illustrated in FIG. 6 so that the thickness of the base layer 22 ′ can be increased according to the size of the carry-on luggage 1 , enabling the carry-on luggage 1 to have optimal mechanical strength.
  • the thermosetting polymeric material (TS) of the base layer 22 ′ provides the housing 2 ′ with a basic strength.
  • the thermoplastic polymeric material (TP) of the protective layer 24 ′ provides flexibility.
  • the housing 2 ′ has enhanced impact resistance and excellent toughness so that the carry-on luggage 1 is not easily broken or damaged, and the internal storage items can be well protected.
  • the main feature of the present invention is the design of the housing 2 ( 2 ′).
  • the base layer 22 ( 22 ′) is made from a thermosetting polymeric material (TS) by molding using heating, pressuring and vacuum techniques.
  • the protective layer 24 ( 24 ′) is made from a thermoplastic polymeric material (TP) and molded on the base layer 22 ( 22 ′) and covered over the outer surface 222 ( 222 ′) or both the outer surface 222 ′ and inner surface 224 of the base layer 22 ( 22 ′).
  • TP thermoplastic polymeric material
  • the fabrication of the housing 2 ( 2 ′) does not require a manual patching step as seen in the prior art design, i.e., the invention allows rapid and mass production of the housing 2 ( 2 ′) to meet a cost-effectiveness target.
  • the perfect composition of the base layer 22 ( 22 ′) and the protective layer 24 ( 24 ′) enables the housing 2 ( 2 ′) based carry-on luggage 1 to have excellent impact resistance.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)

Abstract

A carry-on luggage includes a housing composed of a right half shell and a left half shell, each half shell including a base layer made from a thermosetting polymeric material (TS) by molding and a protective layer made from a thermoplastic polymeric material (TP) and molded on the outer surface of the base layer. Thus, the housing of the carry-on luggage has excellent impact resistance and toughness.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to shoe technology and more particularly, to storage container technology and more particularly, to a carry-on luggage with impact resistance.
  • 2. Description of the Related Art
  • The base layers of the housings of currently commercially available hard shell carry-on luggage are made by molding. After molding, the surface will be uneven and needed to be polished and then coated with a layer of coating so that the surface can be smooth and shiny. However, this processing procedure is quite complicated and time-consuming. Further, regular carry-on luggages commonly have poor impact resistance, they tend to crack or deform due to accidental impact during transportation. Therefore, how to improve the above problem is an important issue.
    • SUMMARY OF THE INVENTION
  • The present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a carry-on luggage, which has excellent impact resistance and is practical for high efficient manufacturing.
  • To achieve this and other objects of the present invention, a carry-on luggage comprises a housing, a plurality of wheels and a handle. The housing comprises a base layer and a protective layer. The base layer is made from a thermosetting polymeric material (TS). The protective layer is made from a thermoplastic polymeric material (TP), and covered over at least one surface of the base layer.
  • Preferably, the protective layer is covered over the outer surface of the base layer.
  • Preferably, the housing of the carry-on luggage further comprises a protective layer arranged on an inner surface of the base layer.
  • Preferably, the protective layer is also made from the thermoplastic polymeric material (TP).
  • Further, the thermosetting polymeric material (TS) can be epoxy or polyester.
  • Preferably, the base layer has contained therein carbon fibers.
  • Further, the thermoplastic polymeric material (TP) is selected from the group of acrylonitrile-butadiene-styrene (ABS), polypropylene (PP), polycarbonate (PC), polyethylene (PE), thermoplastic Polyurethane (TPU), polyamide (PA) and their composites.
  • Preferably, the base layer is composed of multiple layers.
  • Other advantages and features of the present invention will be fully understood by reference to the following specification in conjunction with the accompanying drawings, in which like reference signs denote like components of structure.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a schematic drawing illustrating a carry-on luggage embodying the present invention.
  • FIG. 2 is a sectional view taken along line 2-2 of FIG. 1.
  • FIG. 3 is an enlarged view of Part A of FIG. 2, illustrating the arrangement of the base layer and the protective layer.
  • FIG. 4 is similar to FIG. 3, illustrating a multilayer configuration of the base layer.
  • FIG. 5 is a sectional view of a part of a carry-on luggage in accordance with a second embodiment of the present invention, illustrating two protective layers respectively arranged on opposing inner and outer surfaces of a base layer.
  • FIG. 6 is similar to FIG. 5, illustrating a multilayer configuration of the base layer.
    •  DETAILED DESCRIPTION OF THE INVENTION
  • Referring to FIG. 1, a carry-on luggage in accordance with a first embodiment of the present invention is shown. The carry-on luggage 1 comprises a housing 2, a retractable handle 3, a carrying handle 4, a bolt lock 5 and a plurality of wheels 6. The present invention is focused on the reform of the housing 2.
  • Further details on the housing 2 are given hereinafter. As illustrated in FIGS. 2 and 3, the housing 2 consists of a right half shell 2A and a left half shell 2B. The housing 2 is equipped with a zip fastener or the like so that it can be opened or closed. Every half shell comprises a base layer 22 and a protective layer 24. The base layer 22 is made from a fiber-reinforced thermosetting polymeric material (TS). In fabrication, fibers are mixed in a thermosetting polymeric material (TS), and the mixture is then put in a mold and molded into the desired finished product using vacuum molding technology under a predetermined temperature and pressure. The protective layer 24 is made from a thermoplastic polymeric material (TP) and arranged on an outer surface 222 of the base layer 22. The protective layer 24 is joined to the base layer 22 using heating, pressuring and vacuum techniques, forming a fixed protective film on the base layer 22.
  • In the aforesaid housing 2, in actual practice, the base layer 22 is composed of multiple layers 221 of thermosetting polymeric material (TS), as illustrated in FIG. 4 so that the thickness of the base layer 22 can be increased according to the size of the carry-on luggage 1, enabling the carry-on luggage 1 to have optimal mechanical strength. Further, the thermosetting polymeric material (TS) can be epoxy or polyester). The fibers can be glass fibers, carbon fibers or artificial fibers. Further, the fibers can be arranged in a uniaxial or braided manner. The thermosetting polymeric material (TS) of the base layer 22 provides the housing 2 with a basic strength. The thermoplastic polymeric material (TP) of the protective layer 24 provides flexibility. Thus, on the one hand, this design enhances the impact resistance of the housing 2, on the other hand, this design enables the housing 2 to have excellent toughness for dispersing impact force easily so that the carry-on luggage 1 is not easily broken or damaged, and the internal storage items can be well protected.
  • The protective layer 24 of the aforesaid housing 2 is joined to the base layer 22 using a mold and heating, pressuring and vacuum techniques. Further, the protective layer 24 is arranged on the outer surface 222 of the base layer 22, enabling the housing 2 to provide a smooth shiny surface. The thermoplastic polymeric material (TP) of the protective layer 24 is selected from the group of acrylonitrile-butadiene-styrene (ABS), polypropylene (PP), polycarbonate (PC), polyethylene (PE), thermoplastic Polyurethane (TPU), polyamide (PA) and their composites, having high tension, tough and wear resistance characteristics.
  • As described above, the main feature of the present invention is: the base layer 22 that is made by molding using heating, pressuring and vacuum techniques provides the housing 2 a basic strength, and the protective layer 24 that is covered over the outer surface 222 of the base layer 22 enables the housing 2 to have excellent impact resistance and facilitates rapid production of the housing 2.
  • Referring to FIG. 5, a carry-on luggage in accordance with a second embodiment of the present invention is shown. When compared with the aforesaid first embodiment of the present invention, this second embodiment emphasizes a complete internal and external protection of the carry-on luggage 1. The housing 2′ of this second embodiment comprises a base layer 22′ and two protective layers 24′. Similar to the aforesaid first embodiment, the base layer 22′ is made from a fiber-reinforced thermosetting polymeric material (TS). In fabrication, fibers are mixed in a thermosetting polymeric material (TS), and the mixture is then put in a mold and molded into the desired finished product using vacuum molding technology under a predetermined temperature and pressure. The protective layer 24′ is made from a thermoplastic polymeric material (TP). Further, the base layer 22′ has an outer surface 222′ and an opposing inner surface 224. The two protective layers 24′ are respectively molded on the opposing outer surface 222′ and inner surface 224 of the base layer 22′ using heating, pressuring and vacuum techniques, and covered over the overall outer surface 222′ and inner surface 224 of the base layer 22′. Thus, the design of these two protective layers 24′ can protect the both inner and outer sides of the base layer 22′, enhancing the impact resistance of the housing 2′.
  • In the aforesaid housing 2′, in actual practice, the base layer 22′ is composed of multiple layers 221′ of thermosetting polymeric material (TS), as illustrated in FIG. 6 so that the thickness of the base layer 22′ can be increased according to the size of the carry-on luggage 1, enabling the carry-on luggage 1 to have optimal mechanical strength. Thus, the thermosetting polymeric material (TS) of the base layer 22′ provides the housing 2′ with a basic strength. The thermoplastic polymeric material (TP) of the protective layer 24′ provides flexibility. Thus, the housing 2′ has enhanced impact resistance and excellent toughness so that the carry-on luggage 1 is not easily broken or damaged, and the internal storage items can be well protected.
  • In conclusion, the main feature of the present invention is the design of the housing 2(2′). The base layer 22(22′) is made from a thermosetting polymeric material (TS) by molding using heating, pressuring and vacuum techniques. The protective layer 24(24′) is made from a thermoplastic polymeric material (TP) and molded on the base layer 22(22′) and covered over the outer surface 222(222′) or both the outer surface 222′ and inner surface 224 of the base layer 22(22′). Thus, the fabrication of the housing 2(2′) does not require a manual patching step as seen in the prior art design, i.e., the invention allows rapid and mass production of the housing 2(2′) to meet a cost-effectiveness target. Further, the perfect composition of the base layer 22(22′) and the protective layer 24(24′) enables the housing 2(2′) based carry-on luggage 1 to have excellent impact resistance.
  • Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.

Claims (8)

What is claimed is:
1. A carry-on luggage, comprising a housing, a plurality of wheels and a handle, wherein:
said housing comprising a base layer made from a thermosetting polymeric material (TS), and a protective layer made from a thermoplastic polymeric material (TP) and covered over at least one surface of said base layer.
2. The carry-on luggage as claimed in claim 1, wherein said protective layer is covered over an outer surface of said base layer.
3. The carry-on luggage as claimed in claim 1, wherein said housing further comprises a protective layer arranged on an inner surface of said base layer.
4. The carry-on luggage as claimed in claim 3, wherein said protective layer is made from a thermoplastic polymeric material (TP).
5. The carry-on luggage as claimed in claim 1, wherein said thermosetting polymeric material (TS) is selected from the group of epoxy and polyester.
6. The carry-on luggage as claimed in claim 1, wherein said base layer has contained therein carbon fibers.
7. The carry-on luggage as claimed in claim 1, wherein said thermoplastic polymeric material (TP) is selected from the group of acrylonitrile-butadiene-styrene (ABS), polypropylene (PP), polycarbonate (PC), polyethylene (PE), thermoplastic Polyurethane (TPU), polyamide (PA) and their composites.
8. The carry-on luggage as claimed in claim 1, wherein said base layer is composed of multiple layers.
US15/342,351 2015-12-28 2016-11-03 Carry-on luggage Abandoned US20170181512A1 (en)

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PCT/CN2015/099159 WO2017113045A1 (en) 2015-12-28 2015-12-28 Suitcase

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JP7049707B1 (en) 2020-11-12 2022-04-07 永湖複合材料有限公司 Composite material travel bag and its manufacturing method
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