US20140041977A1 - Suitcase with Retractable Handle Assembly - Google Patents

Suitcase with Retractable Handle Assembly Download PDF

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Publication number
US20140041977A1
US20140041977A1 US13/571,407 US201213571407A US2014041977A1 US 20140041977 A1 US20140041977 A1 US 20140041977A1 US 201213571407 A US201213571407 A US 201213571407A US 2014041977 A1 US2014041977 A1 US 2014041977A1
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United States
Prior art keywords
handle assembly
pipes
suitcase
outer pipes
auxiliary material
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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
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US13/571,407
Inventor
Wen-Chan Chang
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Individual
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Individual
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Publication date
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Priority to US13/571,407 priority Critical patent/US20140041977A1/en
Publication of US20140041977A1 publication Critical patent/US20140041977A1/en
Abandoned legal-status Critical Current

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    • 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

Definitions

  • the present invention relates to a suitcase and, more particularly, to a suitcase with a retractable handle assembly.
  • a conventional suitcase in accordance with the prior art shown in FIGS. 1 and 1 a comprises a main body 30 and a retractable handle assembly 32 mounted on the back face of the main body 30 .
  • the handle assembly 32 includes two outer pipes and two inner pipes retractably mounted in the outer pipes respectively.
  • Each of the inner pipes and the outer pipes of the handle assembly 32 is made of metallic material, such as aluminum, iron or the like, so that each of the inner pipes and the outer pipes of the handle assembly 32 needs a surface treatment, such as oxidating, electroplating, painting and the like.
  • each of the inner pipes and the outer pipes of the handle assembly 32 is made of metallic material, thereby increasing the cost of fabrication of the suitcase.
  • each of the inner pipes and the outer pipes of the handle assembly 32 is made of metallic material, thereby increasing the whole weight of fabrication of the suitcase. Further, each of the inner pipes and the outer pipes of the handle assembly 32 is made of metallic material which usually needs a surface treatment, thereby easily causing an environmental pollution. Further, each of the inner pipes and the outer pipes of the handle assembly 32 is made of metallic material which has a poor restoring function so that each of the inner pipes and the outer pipes of the handle assembly 32 will be distorted or deformed easily when being subjected to a collision as shown in FIG. 1 a.
  • a suitcase comprising a main body and a retractable handle assembly mounted on a back face of the main body.
  • the handle assembly includes a top seat mounted on the main body, a base mounted on the main body, two outer pipes each mounted between the top seat and the base, at least two inner pipes retractably mounted in the outer pipes respectively, and a handgrip mounted between the inner pipes.
  • Each of the inner pipes and the outer pipes of the handle assembly is made of a plastic pipe which is formed by a primary material and an auxiliary material.
  • the primary material and the auxiliary material are initially mixed and fused, and are then extruded and molded to form the plastic pipe of each of the inner pipes and the outer pipes of the handle assembly.
  • the primary material includes polycarbonate (PC).
  • the auxiliary material includes fiber.
  • a suitcase comprising a main body and a retractable handle assembly mounted on a back face of the main body.
  • the handle assembly includes a top seat mounted on the main body, a base mounted on the main body, two outer pipes each mounted between the top seat and the base, at least two inner pipes retractably mounted in the outer pipes respectively, and a handgrip mounted between the inner pipes.
  • Each of the inner pipes and the outer pipes of the handle assembly is made of a plastic pipe which is formed by a primary material and an auxiliary material.
  • the primary material and the auxiliary material are initially mixed and fused, and are then extruded and molded to form the plastic pipe of each of the inner pipes and the outer pipes of the handle assembly.
  • the primary material includes polyoxymethylene (POM).
  • the auxiliary material includes fiber.
  • the fiber of the auxiliary material includes glass fiber.
  • the fiber of the auxiliary material includes carbon fiber.
  • At least one of the inner pipes and the outer pipes of the handle assembly has a peripheral wall provided with at least one reinforcement rib.
  • each of the inner pipes and the outer pipes of the handle assembly is made of plastic material to decrease the cost of fabrication of the suitcase.
  • each of the inner pipes and the outer pipes of the handle assembly is made of plastic material to decrease the whole weight of the suitcase.
  • each of the inner pipes and the outer pipes of the handle assembly is made of plastic material without needing a surface treatment so as to satisfy an environmental protection requirement.
  • each of the inner pipes and the outer pipes of the handle assembly is made of plastic material so that each of the inner pipes and the outer pipes of the handle assembly has a better restoring function and will not be distorted or deformed easily due to a collision.
  • FIG. 1 is a perspective view of a conventional suitcase in accordance with the prior art.
  • FIG. 1 a is a schematic operational view of the conventional suitcase as shown in FIG. 1 after it is hit.
  • FIG. 2 is a rear view of a suitcase in accordance with the preferred embodiment of the present invention.
  • FIG. 3 is a partially perspective extended view of the suitcase as shown in FIG. 2 .
  • FIG. 4 is a perspective view of a pipe of a suitcase in accordance with another preferred embodiment of the present invention.
  • FIG. 5 is a top cross-sectional view of the pipe of the suitcase as shown in FIG. 4 .
  • FIG. 6 is a top cross-sectional view of a pipe of a suitcase in accordance with another preferred embodiment of the present invention.
  • FIG. 7 is a top cross-sectional view of a pipe of a suitcase in accordance with another preferred embodiment of the present invention.
  • a suitcase in accordance with the preferred embodiment of the present invention comprises a main body 10 and a retractable handle assembly 20 mounted on a back face of the main body 10 .
  • the handle assembly 20 includes a top seat 23 mounted on the main body 10 , a base 24 mounted on the main body 10 , two outer pipes 21 each mounted between the top seat 23 and the base 24 , at least two inner pipes 22 retractably mounted in the outer pipes 21 respectively, and a handgrip 25 mounted between the inner pipes 22 .
  • the handgrip 25 When in use, the handgrip 25 is driven upward to pull the inner pipes 22 outward from the outer pipes 21 respectively as shown in FIG. 3 for use with a user.
  • the handgrip 25 is driven downward to retract the inner pipes 22 into the outer pipes 21 respectively as shown in FIG. 2 so as to reduce the whole volume of the handle assembly 20 .
  • each of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 is made of a plastic pipe which is formed by a primary material and an auxiliary material.
  • the primary material and the auxiliary material are initially mixed and fused, and are then extruded and molded to form the plastic pipe of each of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 .
  • the primary material includes polycarbonate (PC) or polyoxymethylene (POM).
  • the auxiliary material includes fiber.
  • the fiber of the auxiliary material includes glass fiber or carbon fiber.
  • At least one of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 has a peripheral wall provided with at least one reinforcement rib 26 to enhance the structural strength of the handle assembly 20 .
  • At least one of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 has a substantially circular shape.
  • At least one of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 has a substantially oblong shape.
  • At least one of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 has a substantially polygonal, rectangular, square, trapezium or D-shaped profile.
  • each of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 is made of plastic material to decrease the cost of fabrication of the suitcase.
  • each of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 is made of plastic material to decrease the whole weight of the suitcase.
  • each of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 is made of plastic material without needing a surface treatment so as to satisfy an environmental protection requirement.
  • each of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 is made of plastic material so that each of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 has a better restoring function and will not be distorted or deformed easily due to a collision.

Abstract

A suitcase includes a main body and a retractable handle assembly mounted on the main body. The handle assembly includes two outer pipes and at least two inner pipes retractably mounted in the outer pipes respectively. Each of the inner pipes and the outer pipes of the handle assembly is made of a plastic pipe which is formed by a primary material and an auxiliary material. The primary material and the auxiliary material are initially mixed and fused, and are then extruded and molded to form the plastic pipe of each of the inner pipes and the outer pipes of the handle assembly. The primary material includes polycarbonate (PC) or polyoxymethylene (POM). The auxiliary material includes fiber. The fiber of the auxiliary material includes glass fiber or carbon fiber.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to a suitcase and, more particularly, to a suitcase with a retractable handle assembly.
  • 2. Description of the Related Art
  • A conventional suitcase in accordance with the prior art shown in FIGS. 1 and 1 a comprises a main body 30 and a retractable handle assembly 32 mounted on the back face of the main body 30. The handle assembly 32 includes two outer pipes and two inner pipes retractably mounted in the outer pipes respectively. Each of the inner pipes and the outer pipes of the handle assembly 32 is made of metallic material, such as aluminum, iron or the like, so that each of the inner pipes and the outer pipes of the handle assembly 32 needs a surface treatment, such as oxidating, electroplating, painting and the like. However, each of the inner pipes and the outer pipes of the handle assembly 32 is made of metallic material, thereby increasing the cost of fabrication of the suitcase. In addition, each of the inner pipes and the outer pipes of the handle assembly 32 is made of metallic material, thereby increasing the whole weight of fabrication of the suitcase. Further, each of the inner pipes and the outer pipes of the handle assembly 32 is made of metallic material which usually needs a surface treatment, thereby easily causing an environmental pollution. Further, each of the inner pipes and the outer pipes of the handle assembly 32 is made of metallic material which has a poor restoring function so that each of the inner pipes and the outer pipes of the handle assembly 32 will be distorted or deformed easily when being subjected to a collision as shown in FIG. 1 a.
    • BRIEF SUMMARY OF THE INVENTION
  • In accordance with one embodiment of the present invention, there is provided a suitcase, comprising a main body and a retractable handle assembly mounted on a back face of the main body. The handle assembly includes a top seat mounted on the main body, a base mounted on the main body, two outer pipes each mounted between the top seat and the base, at least two inner pipes retractably mounted in the outer pipes respectively, and a handgrip mounted between the inner pipes. Each of the inner pipes and the outer pipes of the handle assembly is made of a plastic pipe which is formed by a primary material and an auxiliary material. The primary material and the auxiliary material are initially mixed and fused, and are then extruded and molded to form the plastic pipe of each of the inner pipes and the outer pipes of the handle assembly. The primary material includes polycarbonate (PC). The auxiliary material includes fiber.
  • In accordance with another embodiment of the present invention, there is provided a suitcase, comprising a main body and a retractable handle assembly mounted on a back face of the main body. The handle assembly includes a top seat mounted on the main body, a base mounted on the main body, two outer pipes each mounted between the top seat and the base, at least two inner pipes retractably mounted in the outer pipes respectively, and a handgrip mounted between the inner pipes. Each of the inner pipes and the outer pipes of the handle assembly is made of a plastic pipe which is formed by a primary material and an auxiliary material. The primary material and the auxiliary material are initially mixed and fused, and are then extruded and molded to form the plastic pipe of each of the inner pipes and the outer pipes of the handle assembly. The primary material includes polyoxymethylene (POM). The auxiliary material includes fiber.
  • Preferably, the fiber of the auxiliary material includes glass fiber.
  • Preferably, the fiber of the auxiliary material includes carbon fiber.
  • Preferably, at least one of the inner pipes and the outer pipes of the handle assembly has a peripheral wall provided with at least one reinforcement rib.
  • According to the primary advantage of the present invention, each of the inner pipes and the outer pipes of the handle assembly is made of plastic material to decrease the cost of fabrication of the suitcase.
  • According to another advantage of the present invention, each of the inner pipes and the outer pipes of the handle assembly is made of plastic material to decrease the whole weight of the suitcase.
  • According to a further advantage of the present invention, each of the inner pipes and the outer pipes of the handle assembly is made of plastic material without needing a surface treatment so as to satisfy an environmental protection requirement.
  • According to a further advantage of the present invention, each of the inner pipes and the outer pipes of the handle assembly is made of plastic material so that each of the inner pipes and the outer pipes of the handle assembly has a better restoring function and will not be distorted or deformed easily due to a collision.
  • Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
    • BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S)
  • FIG. 1 is a perspective view of a conventional suitcase in accordance with the prior art.
  • FIG. 1 a is a schematic operational view of the conventional suitcase as shown in FIG. 1 after it is hit.
  • FIG. 2 is a rear view of a suitcase in accordance with the preferred embodiment of the present invention.
  • FIG. 3 is a partially perspective extended view of the suitcase as shown in FIG. 2.
  • FIG. 4 is a perspective view of a pipe of a suitcase in accordance with another preferred embodiment of the present invention.
  • FIG. 5 is a top cross-sectional view of the pipe of the suitcase as shown in FIG. 4.
  • FIG. 6 is a top cross-sectional view of a pipe of a suitcase in accordance with another preferred embodiment of the present invention.
  • FIG. 7 is a top cross-sectional view of a pipe of a suitcase in accordance with another preferred embodiment of the present invention.
    •  DETAILED DESCRIPTION OF THE INVENTION
  • Referring to the drawings and initially to FIGS. 2 and 3, a suitcase in accordance with the preferred embodiment of the present invention comprises a main body 10 and a retractable handle assembly 20 mounted on a back face of the main body 10.
  • The handle assembly 20 includes a top seat 23 mounted on the main body 10, a base 24 mounted on the main body 10, two outer pipes 21 each mounted between the top seat 23 and the base 24, at least two inner pipes 22 retractably mounted in the outer pipes 21 respectively, and a handgrip 25 mounted between the inner pipes 22. When in use, the handgrip 25 is driven upward to pull the inner pipes 22 outward from the outer pipes 21 respectively as shown in FIG. 3 for use with a user. When not in use, the handgrip 25 is driven downward to retract the inner pipes 22 into the outer pipes 21 respectively as shown in FIG. 2 so as to reduce the whole volume of the handle assembly 20.
  • In the preferred embodiment of the present invention, each of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 is made of a plastic pipe which is formed by a primary material and an auxiliary material. The primary material and the auxiliary material are initially mixed and fused, and are then extruded and molded to form the plastic pipe of each of the inner pipes 22 and the outer pipes 21 of the handle assembly 20. The primary material includes polycarbonate (PC) or polyoxymethylene (POM). The auxiliary material includes fiber. The fiber of the auxiliary material includes glass fiber or carbon fiber.
  • Referring to FIGS. 4 and 5, at least one of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 has a peripheral wall provided with at least one reinforcement rib 26 to enhance the structural strength of the handle assembly 20.
  • Referring to FIG. 6, at least one of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 has a substantially circular shape.
  • Referring to FIG. 7, at least one of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 has a substantially oblong shape.
  • Alternatively, at least one of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 has a substantially polygonal, rectangular, square, trapezium or D-shaped profile.
  • Accordingly, each of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 is made of plastic material to decrease the cost of fabrication of the suitcase. In addition, each of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 is made of plastic material to decrease the whole weight of the suitcase. Further, each of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 is made of plastic material without needing a surface treatment so as to satisfy an environmental protection requirement. Further, each of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 is made of plastic material so that each of the inner pipes 22 and the outer pipes 21 of the handle assembly 20 has a better restoring function and will not be distorted or deformed easily due to a collision.
  • Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention.

Claims (10)

1. A suitcase, comprising:
a main body; and
a retractable handle assembly mounted on a back face of the main body;
wherein the handle assembly includes a top seat mounted on the main body, a base mounted on the main body, two outer pipes each mounted between the top seat and the base, at least two inner pipes retractably mounted in the outer pipes respectively, and a handgrip mounted between the inner pipes;
each of the inner pipes and the outer pipes of the handle assembly is made of a plastic pipe which is formed by a primary material and an auxiliary material;
the primary material and the auxiliary material are initially mixed and fused, and are then extruded and molded to form the plastic pipe of each of the inner pipes and the outer pipes of the handle assembly;
the primary material includes polycarbonate (PC); and
the auxiliary material includes fiber.
2. The suitcase of claim 1, wherein the fiber of the auxiliary material includes glass fiber.
3. The suitcase of claim 1, wherein the fiber of the auxiliary material includes carbon fiber.
4. The suitcase of claim 1, wherein at least one of the inner pipes and the outer pipes of the handle assembly has a peripheral wall provided with at least one reinforcement rib.
5. The suitcase of claim 1, wherein at least one of the inner pipes and the outer pipes of the handle assembly has a substantially circular or oblong shape.
6. A suitcase, comprising:
a main body; and
a retractable handle assembly mounted on a back face of the main body;
wherein the handle assembly includes a top seat mounted on the main body, a base mounted on the main body, two outer pipes each mounted between the top seat and the base, at least two inner pipes retractably mounted in the outer pipes respectively, and a handgrip mounted between the inner pipes;
each of the inner pipes and the outer pipes of the handle assembly is made of a plastic pipe which is formed by a primary material and an auxiliary material;
the primary material and the auxiliary material are initially mixed and fused, and are then extruded and molded to form the plastic pipe of each of the inner pipes and the outer pipes of the handle assembly;
the primary material includes polyoxymethylene (POM); and
the auxiliary material includes fiber.
7. The suitcase of claim 6, wherein the fiber of the auxiliary material includes glass fiber.
8. The suitcase of claim 6, wherein the fiber of the auxiliary material includes carbon fiber.
9. The suitcase of claim 6, wherein at least one of the inner pipes and the outer pipes of the handle assembly has a peripheral wall provided with at least one reinforcement rib.
10. The suitcase of claim 6, wherein at least one of the inner pipes and the outer pipes of the handle assembly has a substantially circular or oblong shape.
US13/571,407 2012-08-10 2012-08-10 Suitcase with Retractable Handle Assembly Abandoned US20140041977A1 (en)

Priority Applications (1)

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US13/571,407 US20140041977A1 (en) 2012-08-10 2012-08-10 Suitcase with Retractable Handle Assembly

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US13/571,407 US20140041977A1 (en) 2012-08-10 2012-08-10 Suitcase with Retractable Handle Assembly

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US20140041977A1 true US20140041977A1 (en) 2014-02-13

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US13/571,407 Abandoned US20140041977A1 (en) 2012-08-10 2012-08-10 Suitcase with Retractable Handle Assembly

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10966497B2 (en) * 2019-04-29 2021-04-06 Hsuen-Hsuan Wang Handle assembly for luggage

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4297308A (en) * 1978-03-07 1981-10-27 Dunlop Limited Method of manufacturing games rackets
US5108119A (en) * 1989-08-25 1992-04-28 En Liung Huang Wheeled carrying case
US5433461A (en) * 1994-05-23 1995-07-18 Chang; Wen-Chen Structure of hand truck
US5522615A (en) * 1994-07-15 1996-06-04 Remin Laboratories, Inc. Cart and Luggage handle assembly with an actuator and release apparatus
US6000097A (en) * 1998-06-18 1999-12-14 Tektronix, Inc. Instrument with strengthened hollow handle
US20080053771A1 (en) * 2006-09-05 2008-03-06 Chen-Chuan Wu Pull Handle for Luggage
US7692107B1 (en) * 2007-06-14 2010-04-06 Taymac Corporation Luggage with weight scale built in to luggage frame
US20100090025A1 (en) * 2008-10-10 2010-04-15 Herb Gerard Extendable sprinkler device
US7914018B1 (en) * 2007-02-23 2011-03-29 Patrick Rezler Furniture cart
US20130068579A1 (en) * 2011-09-19 2013-03-21 Travelpro International, Inc. Telescoping luggage handle and stabilizer

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4297308A (en) * 1978-03-07 1981-10-27 Dunlop Limited Method of manufacturing games rackets
US5108119A (en) * 1989-08-25 1992-04-28 En Liung Huang Wheeled carrying case
US5433461A (en) * 1994-05-23 1995-07-18 Chang; Wen-Chen Structure of hand truck
US5522615A (en) * 1994-07-15 1996-06-04 Remin Laboratories, Inc. Cart and Luggage handle assembly with an actuator and release apparatus
US6000097A (en) * 1998-06-18 1999-12-14 Tektronix, Inc. Instrument with strengthened hollow handle
US20080053771A1 (en) * 2006-09-05 2008-03-06 Chen-Chuan Wu Pull Handle for Luggage
US7914018B1 (en) * 2007-02-23 2011-03-29 Patrick Rezler Furniture cart
US7692107B1 (en) * 2007-06-14 2010-04-06 Taymac Corporation Luggage with weight scale built in to luggage frame
US20100090025A1 (en) * 2008-10-10 2010-04-15 Herb Gerard Extendable sprinkler device
US20130068579A1 (en) * 2011-09-19 2013-03-21 Travelpro International, Inc. Telescoping luggage handle and stabilizer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10966497B2 (en) * 2019-04-29 2021-04-06 Hsuen-Hsuan Wang Handle assembly for luggage

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