WO2013168894A1 - Cartouche de rasoir - Google Patents

Cartouche de rasoir Download PDF

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Publication number
WO2013168894A1
WO2013168894A1 PCT/KR2013/002631 KR2013002631W WO2013168894A1 WO 2013168894 A1 WO2013168894 A1 WO 2013168894A1 KR 2013002631 W KR2013002631 W KR 2013002631W WO 2013168894 A1 WO2013168894 A1 WO 2013168894A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
blades
frame
razor cartridge
value
Prior art date
Application number
PCT/KR2013/002631
Other languages
English (en)
Korean (ko)
Inventor
이경식
이재준
Original Assignee
주식회사 도루코
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 주식회사 도루코 filed Critical 주식회사 도루코
Publication of WO2013168894A1 publication Critical patent/WO2013168894A1/fr

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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
    • B26B21/22—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously
    • B26B21/222—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously with the blades moulded into, or attached to, a changeable unit
    • 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
    • B26B21/40—Details or accessories
    • B26B21/4012—Housing details, e.g. for cartridges
    • B26B21/4031—Housing details, e.g. for cartridges characterised by special geometric shaving parameters, e.g. blade span or exposure
    • 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

Definitions

  • the present invention relates to a razor cartridge, and more particularly, to a razor cartridge which is more safe and at the same time a shaving performance in a razor cartridge having three or more blades, which can satisfy the consumer.
  • the skin may be irritated during shaving, and the overall performance may be deteriorated by pulling the skin.
  • the standard for determining the exposure value is based on the plane contacting both the guard and the cap, but this is based on the assumption that the shape of the guard or the cap is curved. It is very difficult and ambiguous.
  • the present invention has been made to solve the above problems, it is possible to improve the performance of the shaving while promoting the safety of the user, the object of the present invention is to provide a razor that improves productivity by simplifying the manufacturing process.
  • the present invention provides a razor cartridge, the razor cartridge, at least three blades; And a frame in which the blades are accommodated in parallel in parallel, wherein the frame has a blade accommodation portion including a base supporting the blade, a front frame positioned in front of the blade, and a rear frame positioned behind the blade.
  • the front blade of the blade has a positive protrusion value
  • the rear blade has a negative protrusion value, based on the contact surface connecting the rear edge of the frame and the front edge of the rear frame provides a razor cartridge. do.
  • the upper surface of the front frame and the rear frame is preferably located on one plane.
  • the protruding value decreases from the front side to the rear side of the blade, and the rate at which the protruding value decreases is preferably constant.
  • the center blade located in the middle has a protrusion value of 0
  • the front blade located in front of the center blade has a positive protrusion value
  • the rear blade located behind the center blade has a negative protrusion value.
  • the half blades located at the front may have a positive protrusion value
  • the half blades located at the rear may have a negative protrusion value
  • the protrusion value of the foremost blade may be +0.04 mm, and the protrusion value of the rearmost blade may be ⁇ 0.02 mm.
  • a rubber guard may be installed at the front of the front frame, and a cap including a lubricating material may be installed at the rear of the rear frame.
  • the spacing between the blades is preferably 0.7 to 0.9 mm.
  • the shaving performance can be improved and the user can be satisfied.
  • the productivity can be improved by a simple structure.
  • FIG 1 and 2 are cross-sectional views showing the razor cartridge according to the prior art
  • FIG. 3 is a perspective view of the razor cartridge according to the present invention.
  • Figure 4 is a perspective view showing a blade receiving portion of the razor cartridge according to the present invention.
  • 5 and 6 are cross-sectional views showing a section taken along the line AA ′ in FIGS. 3 and 4.
  • the razor cartridge according to the present invention includes a frame 100, seven blades 400, and a fixing clip 500.
  • the frame 100 is formed of a plastic material, and a blade accommodating part 110 in which a plurality of blades are accommodated is formed.
  • the blade accommodating part 110 is formed by a groove surrounded by a frame in which a blade is accommodated.
  • the blade receiving portion 110 includes a base 140, the front frame 120 and the rear frame 130.
  • the base 140 is a portion that supports the plurality of blades from below.
  • the base 140 has a plurality of slots as shown in Figure 5 to securely secure the blade can be inserted into the blade.
  • the front frame 120 is provided in a direction that the blade edge (edge) of the blade is directed, is formed to protrude upward from the base 140.
  • the rear frame 130 is provided in a direction opposite to the direction that the blade edge of the blade, and protrudes upward from the base 140.
  • the blade 400 is provided in a bent form, and is vertically raised from the base 140 and is bent so that the blade tip faces forward.
  • seven blades 400 are installed in the blade receiving portion 110 in parallel in parallel, the blade closest to the front frame 120 is the front blade 411, the closest to the rear frame 130 The blade is defined as the rearmost blade 417.
  • the front frame 120 and the rear frame 130 define a contact surface 150. That is, the contact surface 150 refers to a virtual plane formed of a line connecting the rearmost edge 122 of the front frame 120 and the front edge 132 of the rear frame 130.
  • the upper surface of the front frame 120 and the upper surface of the rear frame 130 are both planar and have the same height so that they are placed on the same plane as the contact surface.
  • the contact surface 150 is not actually present, but because it is a virtual plane, it is difficult to set the position of the contact surface when the actual shaver cartridge is manufactured, but as shown in this embodiment, the upper and rear surfaces of the front frame 120 Since the upper surface of the frame 130 all lies on the same plane as the contact surface, it is possible to manufacture the razor cartridge more easily and accurately.
  • the position of the blade tip of the blade is configured differently depending on the position. That is, the blade tip of the foremost blade is located above the contact surface 150. Specifically, the blade tip of the foremost blade is located 0.04 mm above the contact surface. Thus, the value obtained by subtracting the height of the contact surface from the blade edge of the blade is defined as the protrusion value.
  • the protrusion value of the center blade 414 located among the seven blades is set to zero.
  • the protrusion value of the front blade located in front of the center blade has a positive value
  • the protrusion value of the rear blade located behind the center blade has a negative value.
  • a positive value of the protrusion means that the blade edge of the blade is raised above the contact surface, and a negative value of the protrusion means that the blade edge of the blade is below the contact surface.
  • the protrusion value of 0 means that the blade edge of the blade is on the contact surface.
  • an elastomer guard 300 is installed at the front of the front frame 120, and a cap 200 including a lubricating material is installed at the rear of the rear frame 130.
  • the cap 200 may be coupled in the rear frame.
  • the contact surface is defined by the front frame 120 and the rear frame 130 directly configuring the blade accommodation portion, it is possible to more accurately and easily set the protrusion value of the blade.
  • the front blade has a positive protrusion value, the cutting force is improved, the shaving performance is greatly improved.
  • the front blade to cut the first hair has a positive protrusion value to improve the cutting force to cut most of the hair.
  • the remaining part is cut off at the front blade and the remaining part is cut at the middle and rear blades.
  • the cutting force is improved, but there is a safety concern. However, since the skin is supported by the guard 300, cutting force may be improved and stability may be ensured.
  • the protruding value of the blade is preferably reduced at a constant rate from the front to the rear than the blades of the front and the rear blades have the same value. As the protruding value decreases from the front to the rear, the user can feel the shaving more smoothly and feels satisfied.
  • the second blade when shaving the front blade to pull the hair to the top while cutting the hair, the second blade must cut the hair before the hair enters the hair follicles, so the smaller the distance (S) between the blades can be shaved clean .
  • the spacing between the blades of the conventional razor was only 0.95 mm minimum. This is because in the prior art (see Fig. 1), since the blade is supported by the steel strip 15, the gap between the blades can no longer be narrowed due to the thickness of the steel strip.
  • the blade is not supported by the steel strip, but the blade is bent integrally as shown in Fig. 5 and 6, at the same time to minimize the thickness of the slot to make the gap between the blades 0.7 to 0.9mm It is possible to improve the shaving performance.
  • This integrated bending blade has been patented by the Applicant 10-1055684.
  • the spacing of the blades is less than 0.7mm, the sludge including the cut hair is not smoothly discharged, but is sandwiched between the blades, so that shaving performance is deteriorated.
  • the spacing between the blades and the blades is set to 0.7mm to 0.9mm.
  • the interval between the front blade 411 and the front frame 120 is preferably formed in 0.4mm to 0.8mm to optimize the shaving performance.
  • the protruding value of the foremost blade is + 0.02mm ⁇ + 0.6mm, and the protruding value of the rearmost blade is -0.01mm ⁇ -0.04mm is most preferable in terms of shaving performance and feeling during shaving.
  • Fixing clips 500 are installed at both ends of the blade to fix the blade more firmly.
  • the fixing clip 500 is formed to be bent through the frame, it serves to press to maintain the protrusion value of the blade from above.
  • frame 120 front frame

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Dry Shavers And Clippers (AREA)

Abstract

La présente invention concerne une cartouche de rasoir comprenant trois ou plus de trois lames pour améliorer les performances de sécurité et de rasage, satisfaisant ainsi un client. A cet effet, la présente invention concerne une cartouche de rasoir comprenant : trois ou plus de trois lames ; et un cadre dans lequel les lames sont logées parallèlement en une rangée, le cadre comprenant un logement de lame comprenant une base pour supporter les lames, un cadre avant placé en avant des lames et un cadre arrière placé à l'arrière des lames, et une lame de premier rang a une valeur de saillie positive et une lame extrême arrière a une valeur de saillie négative parmi les lames sur la base d'une surface de contact reliant un coin extrême arrière du cadre avant et un coin de premier rang du cadre arrière. Par conséquent, il est possible d'améliorer les performances de rasage et de satisfaire un utilisateur utilisant la cartouche de rasoir comprenant trois ou plus de trois lames de la présente invention.
PCT/KR2013/002631 2012-05-09 2013-03-29 Cartouche de rasoir WO2013168894A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020120049137A KR20130125538A (ko) 2012-05-09 2012-05-09 면도기 카트리지
KR10-2012-0049137 2012-05-09

Publications (1)

Publication Number Publication Date
WO2013168894A1 true WO2013168894A1 (fr) 2013-11-14

Family

ID=49550892

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2013/002631 WO2013168894A1 (fr) 2012-05-09 2013-03-29 Cartouche de rasoir

Country Status (2)

Country Link
KR (1) KR20130125538A (fr)
WO (1) WO2013168894A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016007329A1 (fr) * 2014-07-11 2016-01-14 Shavelogic, Inc. Cartouches de rasoir

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106457584B (zh) * 2014-08-25 2019-02-12 多乐可株式会社 剃须刀刀架及利用该剃须刀刀架的剃须刀
KR20230080182A (ko) 2021-11-29 2023-06-07 주식회사 도루코 면도기 조립체, 면도기 핸들 및 면도기 카트리지
KR20240022271A (ko) 2022-08-11 2024-02-20 주식회사 도루코 면도기 카트리지 및 면도기 조립체

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050015991A1 (en) * 2002-04-24 2005-01-27 Eveready Battery Company, Inc. Razor cartridge
KR100461700B1 (ko) * 1995-03-23 2005-08-24 더 지렛트 캄파니 블레이드유닛과면도카트릿지및이들을포함하는안전면도기
KR20060132904A (ko) * 2004-02-09 2006-12-22 더 지렛트 캄파니 면도기 및 그 제조 방법 및 면도기용 부조립체
US7210229B2 (en) * 2002-04-24 2007-05-01 Eveready Battery Company, Inc. Razor cartridge
US7681314B2 (en) * 2005-06-10 2010-03-23 Eveready Battery Company Inc. Inter-blade guard and method for manufacturing same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100461700B1 (ko) * 1995-03-23 2005-08-24 더 지렛트 캄파니 블레이드유닛과면도카트릿지및이들을포함하는안전면도기
US20050015991A1 (en) * 2002-04-24 2005-01-27 Eveready Battery Company, Inc. Razor cartridge
US7210229B2 (en) * 2002-04-24 2007-05-01 Eveready Battery Company, Inc. Razor cartridge
KR20060132904A (ko) * 2004-02-09 2006-12-22 더 지렛트 캄파니 면도기 및 그 제조 방법 및 면도기용 부조립체
US7681314B2 (en) * 2005-06-10 2010-03-23 Eveready Battery Company Inc. Inter-blade guard and method for manufacturing same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016007329A1 (fr) * 2014-07-11 2016-01-14 Shavelogic, Inc. Cartouches de rasoir
US20170203451A1 (en) * 2014-07-11 2017-07-20 Shavelogic, Inc. Razor cartridges
EP3513921A1 (fr) * 2014-07-11 2019-07-24 Shavelogic, Inc. Cartouche de rasoir
US10960558B2 (en) * 2014-07-11 2021-03-30 Shavelogic, Inc. Razor cartridges

Also Published As

Publication number Publication date
KR20130125538A (ko) 2013-11-19

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