WO2006105609A1 - Ciseaux a cheveux - Google Patents

Ciseaux a cheveux Download PDF

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Publication number
WO2006105609A1
WO2006105609A1 PCT/AU2006/000466 AU2006000466W WO2006105609A1 WO 2006105609 A1 WO2006105609 A1 WO 2006105609A1 AU 2006000466 W AU2006000466 W AU 2006000466W WO 2006105609 A1 WO2006105609 A1 WO 2006105609A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
teeth
tooth
cutting plane
hair scissors
Prior art date
Application number
PCT/AU2006/000466
Other languages
English (en)
Inventor
Coral Smith
Roslyn Williams
Original Assignee
Coral Smith
Roslyn Williams
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
Priority claimed from AU2005901700A external-priority patent/AU2005901700A0/en
Application filed by Coral Smith, Roslyn Williams filed Critical Coral Smith
Priority to AU2006230814A priority Critical patent/AU2006230814A1/en
Publication of WO2006105609A1 publication Critical patent/WO2006105609A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B13/00—Hand shears; Scissors
    • B26B13/22—Hand shears; Scissors combined with auxiliary implements, e.g. with cigar cutter, with manicure instrument
    • B26B13/24—Hand shears; Scissors combined with auxiliary implements, e.g. with cigar cutter, with manicure instrument to aid hair cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B13/00—Hand shears; Scissors
    • B26B13/06—Hand shears; Scissors characterised by the shape of the blades
    • B26B13/10—Hand shears; Scissors characterised by the shape of the blades for producing wavy, zig-zag, or like cuts

Definitions

  • Hair scissors which can automatically enable the blending, thinning and/or layering of hair.
  • Swiss patent 651493 is the only prior art document known to the applicant that discloses pinking shears that can also be employed for the cutting of hair.
  • these shears have tapered blades and a standard (regular) teeth configuration, which makes it difficult to achieve automatic blending and/or layering of hair.
  • hair scissors comprising first and second blades pivotally mounted together at a proximal end and that, during pivoting, slide over each other at the proximal end on either side of a cutting plane, each blade having a plurality of teeth that define a serrated cutting edge extending along the blade, the teeth projecting from their respective blade in a direction that is generally transverse with respect to the cutting plane, characterised in that each tooth in one blade has a different height to at least one immediately adjacent tooth in the blade.
  • the teeth height can be measured from a base plane that is parallel to the cutting plane.
  • each tooth in one of the blades By arranging each tooth in one of the blades to have a different height to at least one of the immediately adjacent teeth it has been found that a resultant hair cutting action then automatically leaves no line of demarcation, or "hack” or “scissor” marks in the hair. In this regard, because of the uneven heights the hair is automatically unevenly cut. Also, each section of layering automatically results in a "blended" effect.
  • hair scissors comprising first and second blades pivotally mounted together at a proximal end and that, during pivoting, slide over each other at the proximal end on either side of a cutting plane, each blade having a plurality of teeth that define a serrated cutting edge extending along the blade, the teeth projecting from their respective blade in a direction that is generally transverse with respect to the cutting plane, characterised in that a section of each blade in which the teeth are located has a constant width in the cutting plane.
  • blade forming eg. by machining, forging or forming
  • a wider, constant width blade does not tend to bend in final heating or formation stages, with bending otherwise resulting in an inaccurate blade of poor tolerance.
  • all the teeth are fully supported by the blade in use.
  • the hair scissors of the first and second aspects may replace in a single and automatic action the usual two-stage cut employed by a hairdresser when cutting hair (namely, cut with straight-bladed scissors and then a second stage of thinning/texturing with eg. thinning scissors). This can reduce cutting time and hairdresser fatigue, and improve hair cutting accuracy.
  • the teeth in the one blade have at least two different teeth heights and may have three or more different teeth heights.
  • both of the immediately adjacent teeth (ie. on either side) of a given tooth can have a different teeth height compared with the given tooth.
  • the teeth height variation can occur in a repeating pattern defined by repeating teeth groups, with each group comprising eg. two or three teeth of differing heights.
  • Each group may comprise two or three different height teeth being a relatively long tooth, a relatively short tooth, and optionally a tooth of intermediate height.
  • the teeth on one blade are arranged to progressively intermesh with the teeth on the other during pivoting as the blades slide over each other.
  • the teeth on each blade can fully intermesh, with a given tooth on the one blade then being positioned between two adjacent teeth on the other, and with the given tooth facing the two other teeth at respective generally planar teeth-facing surfaces.
  • the plane of each teeth-facing surface can be inclined to the cutting plane to define a flat surface extending along the tooth for its height, this arrangement facilitating a precise cutting action.
  • Each tooth can have a generally saw-tooth like shape, with the tooth extending from a broader base located at the blade to a remote point. This allows a layer of hair to be cut in type of zigzag line, which can further serve to eliminate or alleviate a sectioning or demarcation line.
  • the serrated cutting edge can commence at a location along each blade spaced from where the blades are pivotally mounted together, with the cutting edge optionally extending to a distal end of each blade.
  • the distal end can be blunt.
  • each blade has part of a manual handling mechanism extending from its proximal end (eg. a finger loop construction).
  • hair scissors comprising first and second blades pivotally mounted together at a proximal end and that, during pivoting, slide over each other at the proximal end on either side of a cutting plane, each blade having a plurality of teeth that define a serrated cutting edge extending along the blade, the teeth projecting from their respective blade in a direction that is generally transverse with respect to the cutting plane, characterised in that each tooth in one blade has a different height as measured from the cutting plane to at least one immediately adjacent tooth in the blade, and a section of each blade in which the teeth are located has a constant width in the cutting plane.
  • the hair scissors of the third aspect may be otherwise as defined in the first and second aspects.
  • Figure 1 shows a perspective view of a hair scissors embodiment in a closed configuration
  • Figure 2 shows a side view of the hair scissors of Figure 1 in a closed configuration
  • Figure 3 shows a side detail of the hair scissors of Figure 1 illustrating the teeth height variation
  • Figure 4 shows a plan detail of the hair scissors of Figure 1 illustrating the constant blade width
  • Figure 5 shows a schematic side perspective view of a second configuration of teeth for a hair scissors blade
  • Figure 6 shows a schematic side perspective view of a third configuration of teeth for a hair scissors blade.
  • hair scissors 10 comprise first 12 and second
  • Each blade pivotally mounted together at a proximal blade end via a pivot pin 16.
  • Each blade has a loop part 18, 18' of a handle mechanism extending from its proximal end. Whilst a right-handed configuration is depicted, the handle mechanism can be reversed for left-handed users.
  • the blades 12, 14 slide over each other at the proximal end on either side of an imaginary cutting plane P ( Figure 3).
  • the first blade 12 has a plurality of teeth 20 and 22 that define a serrated cutting edge having a general saw-tooth configuration extending along the blade. As shown in Figure 3, each tooth 20 has a height T 1 that is less than the height T 2 of the immediately adjacent tooth 22 in the blade 12. The teeth heights T 1 and T 2 are measured from a base plane BP that is parallel to the cutting plane P.
  • each group may comprise three teeth, being a relatively long tooth 26, a relatively short tooth 28, and a tooth of intermediate height 30.
  • the teeth 26, 28 and 30 may have a different sequence to that depicted.
  • teeth 31 to 38 each of differing heights, can be provided on the first blade (and hence on the second blade).
  • the second blade 14 has a plurality of teeth 24 that also define a serrated cutting edge having a general saw-tooth configuration extending along the blade.
  • each tooth 24 has the same height as each immediately adjacent tooth 24, as measured from a base plane that is parallel to the cutting plane P. Again, it will be seen that two teeth 24 occur in a repeating pattern defined by spaced repeating teeth pairs, with each pair comprising the two teeth 24 of the same height.
  • each blade With each blade the serrated cutting edge commences at a location that is slightly spaced from the pivot pin 16, with the cutting edge extending right through to a blunt distal end 25 of each blade as shown.
  • the teeth also extend across and right through each blade, and project from their respective blade in a direction that is generally transverse with respect to the cutting plane P (ie. towards the teeth of the other blade respectively).
  • the transverse projecting arrangement of the teeth (usually with each tooth major axis extending in a direction that is orthogonal with respect to the cutting plane) also assists in promoting the hair cutting action that automatically leaves no line of demarcation in the hair.
  • each tooth 20 on the first blade is positioned between two pairs of the teeth 24 on the second blade 14, and each tooth 22 on the first blade is positioned between the two teeth 24 within a given pair on the second blade 14.
  • Each tooth also comprises two generally planar teeth-facing surfaces that each closely face a respective surface of the teeth on the other blade when the scissors are closed.
  • the planar teeth-facing surfaces are inclined to the cutting plane to define the general saw-tooth serration along each blade.
  • each of the teeth edges is machined, formed or forged to be sharp to aid with hair cutting.
  • each tooth is typically saw-tooth like in shape (ie. extending from a broader base located at the blade to a remote point) it may have other shapes (eg. castellated, square etc). However, with the saw-tooth shape, optimal uneven zigzag hair cuts result.
  • the hair scissors described can replace both straight-blade and thinning scissors.
  • a thinning effect can also be achieved with the scissors which helps to alleviate eg. thick and/or woolly hair, making it more manageable and easier to style, and allowing the hair to be more controlled.
  • the serrated, meshed teeth can also cut an inclined "surface" at each hair end.
  • the hair scissors described can also avoid the effect of "chipping" into hair which can result from a contorted use of ordinary scissors (ie. by holding the hair out or up and “chipping" into it at an angle - this gives an angled uneven look but results in a "hack” mark).
  • each blade 12, 14 in which the teeth are located has a constant width W in the cutting plane P, throughout the length of section S.
  • the wider and constant width blade means that the metal of the blade does not tend to bend in the final heating or formation stages of such processes. This can also produce a blade of high accuracy and thus performance.
  • the teeth are supported right down to the distal end 25. Blade bending during formation and use can otherwise result in an inaccurate blade of poor tolerance and poor performance.
  • the blades at least are formed of a steel alloy material (eg. a hardened stainless steel).
  • the hair scissors 10 can thus replace, in a single stage, the known two-stage hair cutting procedure.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Scissors And Nippers (AREA)

Abstract

Cette invention concerne des ciseaux à cheveux (10) comprenant une première lame (12) et une seconde lame (14). Les lames sont assemblées de manière pivotante à une extrémité proximale et, lors du pivotement, glissent l’une sur l’autre à l’extrémité proximale sur une face d’un plan de coupe P. Chaque lame possède une pluralité de dents (20, 22, 24) formant un bord coupant dentelé le long de la lame. Les dents font saillie par rapport à leur lame respective dans une direction en général transversale au plan de coupe. Chaque dent (par exemple 20) de la première lame peut avoir une hauteur différente par rapport au plan de coupe de celle d’au moins une dent adjacente (par exemple 22) de la lame. En outre, une section S de chaque lame (12, 14) contenant les dents peut avoir une largeur constante W dans le plan de coupe.
PCT/AU2006/000466 2005-04-07 2006-04-07 Ciseaux a cheveux WO2006105609A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2006230814A AU2006230814A1 (en) 2005-04-07 2006-04-07 Hair scissors

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2005901700 2005-04-07
AU2005901700A AU2005901700A0 (en) 2005-04-07 Hair scissors

Publications (1)

Publication Number Publication Date
WO2006105609A1 true WO2006105609A1 (fr) 2006-10-12

Family

ID=37073030

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2006/000466 WO2006105609A1 (fr) 2005-04-07 2006-04-07 Ciseaux a cheveux

Country Status (1)

Country Link
WO (1) WO2006105609A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2932407A1 (fr) * 2008-06-11 2009-12-18 Oreal Ciseaux de decoupe de patchs pour ongles
CN103786173A (zh) * 2014-03-04 2014-05-14 陈彬 裁剪刀头及使用该裁剪刀头的花边剪
KR101597078B1 (ko) * 2015-11-12 2016-02-24 정찬이 머리스타일 연출용 미용가위

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5421090A (en) * 1994-02-08 1995-06-06 Ding Wei Enterprises, Inc. Structure of scissors
FR2774935A1 (fr) * 1998-02-19 1999-08-20 Manuf D Articles De Precision Ciseaux a lames interchangeables
JP2000084269A (ja) * 1998-09-08 2000-03-28 Kaneshika Kogu Seisakusho:Kk 波板切り鋏

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5421090A (en) * 1994-02-08 1995-06-06 Ding Wei Enterprises, Inc. Structure of scissors
FR2774935A1 (fr) * 1998-02-19 1999-08-20 Manuf D Articles De Precision Ciseaux a lames interchangeables
JP2000084269A (ja) * 1998-09-08 2000-03-28 Kaneshika Kogu Seisakusho:Kk 波板切り鋏

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 200026, Derwent World Patents Index; Class P62, AN 2000-296827 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2932407A1 (fr) * 2008-06-11 2009-12-18 Oreal Ciseaux de decoupe de patchs pour ongles
CN103786173A (zh) * 2014-03-04 2014-05-14 陈彬 裁剪刀头及使用该裁剪刀头的花边剪
KR101597078B1 (ko) * 2015-11-12 2016-02-24 정찬이 머리스타일 연출용 미용가위

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