WO2007043735A1 - Razors having a convex razor blade - Google Patents

Razors having a convex razor blade Download PDF

Info

Publication number
WO2007043735A1
WO2007043735A1 PCT/KR2006/001608 KR2006001608W WO2007043735A1 WO 2007043735 A1 WO2007043735 A1 WO 2007043735A1 KR 2006001608 W KR2006001608 W KR 2006001608W WO 2007043735 A1 WO2007043735 A1 WO 2007043735A1
Authority
WO
WIPO (PCT)
Prior art keywords
razor blade
razors
convex
hairs
shaped
Prior art date
Application number
PCT/KR2006/001608
Other languages
French (fr)
Inventor
Ju Rak Kim
Original Assignee
Ju Rak Kim
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 Ju Rak Kim filed Critical Ju Rak Kim
Publication of WO2007043735A1 publication Critical patent/WO2007043735A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/08—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving changeable blades
    • B26B21/14—Safety razors with one or more blades arranged transversely to the handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/54—Razor-blades
    • B26B21/56—Razor-blades characterised by the shape
    • B26B21/565—Bent razor blades; Razor blades with bent carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/08—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving changeable blades
    • B26B21/14—Safety razors with one or more blades arranged transversely to the handle
    • B26B21/22—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/08—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving changeable blades
    • B26B21/14—Safety razors with one or more blades arranged transversely to the handle
    • B26B21/28—Safety razors with one or more blades arranged transversely to the handle of the drawing cut type, i.e. with the cutting edge of the blade arranged obliquely or curved to the handle

Definitions

  • the present invention relates to razors having a convex razor blade, and more particularly to razors in which by making the center portion of a "straight line” shaped razor blade fixed to the body of razors convex-shaped, it can be easy to cut mustache or the hairs (hereinafter referred to as "the hairs") sprouted on the curved skin surface of a user.
  • Such conventional blade-type razors as shown in Figures 5 and 6, comprise a body
  • the number of razor blade 3 is one or more and the shape thereof is designed to be fixed or separated to/from the inside of the body 2 in parallel with the body 2. Further, the body having a razor blade formed thereon and the handle are made integrally, or designed to be conveniently and exchangeably fixed to the handle.
  • the in-line razor blade has a problem difficult to cut a number of the hairs at a time because the blade has a low surface area closed to the hairs sprouted on the curved skin surface of user, and therefore the user should shave at several angles and several times to cut the hairs.
  • the blade has an inconvenient problem that if a user is not proficient in shaving, he may be wounded by the razor blade.
  • the conventional in-line razor blade has a low surface area closed to the hairs sprouted on the curved skin surface of user when shaving and thus causes a resisting force against the blade, resulting in a short life of the razor blade.
  • an object of the present invention is to solve the above problems.
  • the center portion of the razor blade fixed outwardly to the body of razors is convex-shaped so that the area where the razor blade is adhered to the curved skin surface can be increased, thereby improving the shaving ability of the razor blade as well as extending the razor blade's life.
  • the center portion of the razor blade of razors is a convex-shaped and thus the area of the razor blade being adhered to the curved skin surface is increased and at the same time, the surface area of the razor blade adhered to the hairs is increased and thus the cutting ability is improved, thereby extending the razor blade's life.
  • Figure 1 is an exemplary view illustrating a state that the present utility is applied
  • Figure 2 is a plan view of the present invention
  • Figure 3 is an exemplary view illustrating a state that the present utility is used
  • Figure 4 is a view showing the essential part off the present invention.
  • Figures 5 and 6 are views showing a structure of a conventional razor.
  • the hairs 11 adhered to the razor blade 20 can be easily cut since the cutting ability is improved due to the increased surface area of the convex-shaped razor blade 20 to the hairs 11, and the resist force of the convex razor blade 20 generated against the hairs 11 can be minimized, thereby extending the life of the razor blade 3 of razors 1.

Abstract

The present invention relates to razors having a convex razor blade, and more particularly to razors in which by making the center portion of a 'straight line'shaped razor blade fixed to the body of razors convex-shaped so that it can be easy to cut mustache or the hairs sprouted on the skin surface of the interface between a curved portion of chin and a neck of a user, the area where the center portion of the razor blade fixed outwardly to the body of razors is adhered to the curved skin surface can be increased, thereby improving the shaving ability of the razor blade as well as extending the razor blade's life. That is, according to the present invention, in a conventional razors 1 having a razor blade 3 provided outwardly on its body 2 thereof and a handle 4 connected to the body 2, the razors are characterized in that a convex-shaped razor blade 20 is formed at the center portion of the razor blade 3 provided outwardly and a convex member 21 is formed at one side of the body 2 in the same line with the convex razor blade 20.

Description

Description
RAZORS HAVINGA CONVEXRAZORBLADE
Technical Field
[1] The present invention relates to razors having a convex razor blade, and more particularly to razors in which by making the center portion of a "straight line" shaped razor blade fixed to the body of razors convex-shaped, it can be easy to cut mustache or the hairs (hereinafter referred to as "the hairs") sprouted on the curved skin surface of a user.
[2]
Background Art
[3] In general, razors have been used to shave various types of the hairs and become one of products that are greatly and world-widely increasing in the quantity consumed regardless of sex.
[4] As conventional razors, there have been used an electric-charged razor and a blade- type razor having a razor blade provided outwardly to the body thereof. Such conventional electric-charged razors are provided with a rotational razor blade at the inside of the mesh thereof so as to cut the hairs being inserted into the mesh. However, it has a disadvantage difficult to shave the skin surface and thus there was preferably used a blade-type razor to directly cut the hairs sprouted on the skin surface.
[5] Such conventional blade-type razors, as shown in Figures 5 and 6, comprise a body
2 having a razor blade formed thereon and a handle 4 in which the razor blade 3 and body 2 are positioned in an in-line. The number of razor blade 3 is one or more and the shape thereof is designed to be fixed or separated to/from the inside of the body 2 in parallel with the body 2. Further, the body having a razor blade formed thereon and the handle are made integrally, or designed to be conveniently and exchangeably fixed to the handle.
Disclosure of Invention Technical Problem
[6] However, when using the conventional razors having a razor blade formed in an inline, the in-line razor blade has a problem difficult to cut a number of the hairs at a time because the blade has a low surface area closed to the hairs sprouted on the curved skin surface of user, and therefore the user should shave at several angles and several times to cut the hairs. Also, the blade has an inconvenient problem that if a user is not proficient in shaving, he may be wounded by the razor blade.
[7] Further, the conventional in-line razor blade has a low surface area closed to the hairs sprouted on the curved skin surface of user when shaving and thus causes a resisting force against the blade, resulting in a short life of the razor blade. Technical Solution
[8] Accordingly, an object of the present invention is to solve the above problems.
According to the present invention, in order to solve the problem of the conventional razors in cutting the hairs sprouted on the skin surface of the interface between curved portion of chin and neck of a user, the center portion of the razor blade fixed outwardly to the body of razors is convex-shaped so that the area where the razor blade is adhered to the curved skin surface can be increased, thereby improving the shaving ability of the razor blade as well as extending the razor blade's life.
[9] Now, a structure of razors according to the present invention will be described in detail with reference to the accompanying drawings. Advantageous Effects
[10] Therefore, as described above, the center portion of the razor blade of razors is a convex-shaped and thus the area of the razor blade being adhered to the curved skin surface is increased and at the same time, the surface area of the razor blade adhered to the hairs is increased and thus the cutting ability is improved, thereby extending the razor blade's life. Brief Description of the Drawings
[11] Figure 1 is an exemplary view illustrating a state that the present utility is applied;
[12] Figure 2 is a plan view of the present invention;
[13] Figure 3 is an exemplary view illustrating a state that the present utility is used;
[14] Figure 4 is a view showing the essential part off the present invention.
[15] Figures 5 and 6 are views showing a structure of a conventional razor.
Best Mode for Carrying Out the Invention
[16] As the structure of the present utility design for achieving the above object, in conventional razors 1 having a razor blade 3 provided outwardly on its body 2 thereof and a handle 4 connected to the body 2, a convex-shaped razor blade 20 is formed at the center portion of the razor blade 3 provided outwardly and a convex member 21 is formed at one side of the body 2 in the same line with the convex razor blade 20 as shown in Figures 1 and 2.
[17] In case that the number of the razor blade 3 provided on the body 2 is plural, it is also desirable for the blade to be convex-shaped.
[18] According to the present invention having the above structure, as shown in Figure
3, when a user holds the handle 4 of the razors 1 and then adheres the razor blade 20 to the skin surface of the interface between the chin 10 and neck 12 of him in order to cut the hairs 11 sprouted on the skin surface of the interface between curved portion of the chin 10 and neck 12 of him, the adhesion force of the convex razor blade 20 to the curved skin surface is increased. Further, when the hairs 11 are adhered to the convex razor blade 20, the convex-shaped razor blade 20 and the circular-shaped hairs 11 are adhered to each other and thus the surface area where the convex-shaped razor blade 20 and the hairs 11 are adhered advantageously improved.
[19] Accordingly, the hairs 11 adhered to the razor blade 20 can be easily cut since the cutting ability is improved due to the increased surface area of the convex-shaped razor blade 20 to the hairs 11, and the resist force of the convex razor blade 20 generated against the hairs 11 can be minimized, thereby extending the life of the razor blade 3 of razors 1.
[20]

Claims

Claims
[1] In conventional razors 1 having a razor blade 3 provided outwardly on its body 2 thereof and a handle 4 connected to the body 2, the razors being characterized in that a convex-shaped razor blade 20 is formed at the center portion of the razor blade 3 provided outwardly and a convex member 21 is formed at one side of the body 2 in the same line with the convex razor blade 20.
PCT/KR2006/001608 2005-10-10 2006-04-28 Razors having a convex razor blade WO2007043735A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20-2005-0028782 2005-10-10
KR2020050028782U KR200405136Y1 (en) 2005-10-10 2005-10-10 A shaver with convex razor

Publications (1)

Publication Number Publication Date
WO2007043735A1 true WO2007043735A1 (en) 2007-04-19

Family

ID=37942943

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2006/001608 WO2007043735A1 (en) 2005-10-10 2006-04-28 Razors having a convex razor blade

Country Status (3)

Country Link
KR (1) KR200405136Y1 (en)
CN (1) CN200951576Y (en)
WO (1) WO2007043735A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2077179A1 (en) * 2007-12-14 2009-07-08 Jesus Lostal Navarro Razor blades
FR2927561A1 (en) * 2008-02-20 2009-08-21 Christophe Abbe MANUAL SHAVING TOOL.
EP2397281A2 (en) * 2009-02-11 2011-12-21 Dorco Co., Ltd Unitary razor blade and shaving razor cartridge using same
CN104162898A (en) * 2014-08-05 2014-11-26 张璧云 Small-size shaver system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901437A (en) * 1984-05-25 1990-02-20 American Safety Razor Company Razor head and method of manufacture
US4980974A (en) * 1989-05-11 1991-01-01 Radcliffe Allan F Contoured shaving blades
US5199173A (en) * 1991-10-17 1993-04-06 Hegemann Research Corporation Concave, convex safety razor
US5208982A (en) * 1992-02-19 1993-05-11 Sferruzza Jr Gerald A Device to shave concave areas

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901437A (en) * 1984-05-25 1990-02-20 American Safety Razor Company Razor head and method of manufacture
US4980974A (en) * 1989-05-11 1991-01-01 Radcliffe Allan F Contoured shaving blades
US5199173A (en) * 1991-10-17 1993-04-06 Hegemann Research Corporation Concave, convex safety razor
US5208982A (en) * 1992-02-19 1993-05-11 Sferruzza Jr Gerald A Device to shave concave areas

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2077179A1 (en) * 2007-12-14 2009-07-08 Jesus Lostal Navarro Razor blades
FR2927561A1 (en) * 2008-02-20 2009-08-21 Christophe Abbe MANUAL SHAVING TOOL.
WO2009104163A2 (en) * 2008-02-20 2009-08-27 Christophe Abbe Handheld shaving tool
WO2009104163A3 (en) * 2008-02-20 2009-12-17 Christophe Abbe Handheld shaving tool
EP2397281A2 (en) * 2009-02-11 2011-12-21 Dorco Co., Ltd Unitary razor blade and shaving razor cartridge using same
EP2397281A4 (en) * 2009-02-11 2012-07-18 Dorco Co Ltd Unitary razor blade and shaving razor cartridge using same
JP2012517274A (en) * 2009-02-11 2012-08-02 ドルコ カンパニー リミテッド Integrated razor blade and razor cartridge using the same
CN104162898A (en) * 2014-08-05 2014-11-26 张璧云 Small-size shaver system

Also Published As

Publication number Publication date
CN200951576Y (en) 2007-09-26
KR200405136Y1 (en) 2006-01-11

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