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WO2007136445A2 - Improved hair straightening and styling appliance - Google Patents

Improved hair straightening and styling appliance Download PDF

Info

Publication number
WO2007136445A2
WO2007136445A2 PCT/US2007/006159 US2007006159W WO2007136445A2 WO 2007136445 A2 WO2007136445 A2 WO 2007136445A2 US 2007006159 W US2007006159 W US 2007006159W WO 2007136445 A2 WO2007136445 A2 WO 2007136445A2
Authority
WO
WIPO (PCT)
Prior art keywords
hair
dynamic
stationary
shearing edge
appliance according
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.)
Ceased
Application number
PCT/US2007/006159
Other languages
French (fr)
Other versions
WO2007136445A3 (en
Inventor
Pierre L.M. Julemont
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.)
Conair LLC
Original Assignee
Conair LLC
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40674138&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2007136445(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Conair LLC filed Critical Conair LLC
Publication of WO2007136445A2 publication Critical patent/WO2007136445A2/en
Publication of WO2007136445A3 publication Critical patent/WO2007136445A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D2/00—Hair-curling or hair-waving appliances ; Appliances for hair dressing treatment not otherwise provided for
    • A45D2/001—Hair straightening appliances
    • A45D2/002—Hair straightening appliances with combs
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/04—Hot-air producers
    • A45D20/08—Hot-air producers heated electrically
    • A45D20/10—Hand-held drying devices, e.g. air douches
    • A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/48—Hair-drying combs or hair-drying brushes, with internal heating means
    • A45D20/50—Hair-drying combs or hair-drying brushes, with internal heating means and provision for an air stream

Definitions

  • the present invention relates to hair straightening and styling appliances and, more particularly, to a hand held appliance having an an electrically driven fan and heat element, and hair engaging means for simultaneously styling or straightening hair while applying heated air.
  • Handheld appliances of this type typically include a heater and fan element, and a comb attachment.
  • straightening is achieved only by combing.
  • At least one know design comprises multiple flat surfaces that close against each other to compress hair strands between flat surfaces. This type of appliance spreads or distributes force over a relatively large surface area compared to the hair strands and it is less effective in delivering heated air to hair while the hair is compressed between the flat surfaces, preventing flowing, heated air from contacting the hair.
  • Another object of the present invention is to provide a styling appliance that efficiently applies force over a relatively small surface area to maximize force and minimize effort to achieve optimum efficiency and convenience.
  • the present invention comprises a handheld hair styling appliance having an electric motor, electric heat element, and hair engaging elements including a set of stationary extending parts with respective shearing edges, and a set of movable extending parts having respective shearing edges, whereby when the moving parts move relative to and in proximity with the stationary parts, the respective shearing edges of each cooperate to compress strands of hair therebetween.
  • the movable parts are spring- mounted to a carriage and are urged into close proximity with the stationary parts, such that constant pressure is applied to hair strands positioned therebetween.
  • the respective shearing edges for each of the parts are thin edges so that only a thin profile of hair is engaged at any given instant, while the appliance is drawn through the hair as heated air is applied.
  • Fig. IA is a first side view of an appliance according to the present invention.
  • Fig. IB is a bottom view of an appliance according to the present invention.
  • Fig. 1C is .a second side view of an appliance according to the present invention.
  • Fig, ID is a top view of an appliance according to the present invention.
  • Fig. IE is a distal end view of an appliance according to the present invention.
  • Fig. IF is a cross-sectional view of an appliance according to the present invention.
  • Fig, IG is a proximal end view of an appliance according to the present invention.
  • Fig. 2 is an exploded view of an appliance according to the present invention.
  • Fig. 3 is an exploded view of a component of an appliance according to the present invention.
  • An appliance 1 comprises a handle portion 2, a head portion 3, a cord swivel 4, a cord extension mount 5, a proximal end 7, and a distal end 8.
  • a metallic panel 8 and control switch 9 are provided.
  • a plurality of central hair engaging elements 10 and a plurality of first side hair engaging elements 11 and a plurality of second side hair engaging elements 12 are mounted at the head portion 3.
  • a tension control element 13 is mounted at the distal end 8.
  • the body making up the handle portion 2 and the head portion 3 is preferably made of two molded halves, a first body half 14 and a second body half 15.
  • a panel and switch assembly 16 is comprised of the metallic panel 8, the switch 9 and multiple components shown in Fig. 2.
  • a filter cover 17 may be provided at the proximal end 6 which serves as an air intake, and is included in an end assembly 18.
  • a fan and motor assembly 19 is housed internally in the handle portion 2.
  • a motor and fan switching assembly 20 controls heat and air flow functions.
  • a heater assembly 21 may comprise a standard heat element of a type generally known, and is also housed internally. Air driven by the fan assembly 20 moves air past the heater assembly 20 and heated air exits past the hair engaging elements 10, 11, 12.
  • An electric plug 22 and cord 23 deliver power to the motor and heater assembly.
  • the hair engaging elements 10, 11, 12 make up components of a hair engaging assembly 24 that is shown in more detai 1 in fig. 3.
  • the hair engaging assembly 24 comprises a central, dynamic hair engaging assembly 25 that includes a rod 26, a spring 27, a latch 28, and a base 29 to which each of the central hair engaging elements 31 are attached.
  • Each hair engaging element 31 comprises a generally triangular shape with a pair of extending and converting sides. The sides join near the top apex 35 and form a curved, angular surface 32. The outside edges of the sides form, respectively, first and second shearing edges 33, 34, The edges 33, 34 may be generally right-angle edges or they may have a small bevel shape.
  • the rod 26 is received in a hole 30 to mount the base 29 for linear movement as described below.
  • the central hair engaging elements 10 also include a static central hair engaging assembly 36 which comprises a base 37, a plurality of extending shearing elements 38, and a central opening 39 in each element 38,
  • the central openings 38 are sized to receive therein each respective dynamic element 31 so that, as explained below, each dynamic element moves into and out of proximity from a respective stationary elements 38.
  • the inner edges of the stationary shearing elements 38 form first and second shearing edges 40, 41 on each stationary element 38.
  • An apex 42 is formed at the top,
  • An adjustment cam 43 having bayonet-type settings is manipulated by the tension control element 13 to preset tension in the spring 27.
  • the first and second side hair engaging elements 11, 12 comprise respective first and second bases 45, 46 that support each of the plurality of comb-teeth-like elements 11, 12,
  • the bases 45, 46 are fixed for stationary positioning.
  • a user holds the appliance 1 by the handle portion 2.
  • the user brushes the head portion 3 into the hair as if using a styling brush. Strands of hair will contact the curved, angular surfaces 32 when entering the gaps 43.
  • the spring 27 is overcome so that the dynamic elements 31 and their base 29 move together against the spring 27 in response. This causes the 007/006 15 9
  • the hair strands are not shielded from air flow and the net force on the hair is concentrated on a much smaller surface area, thus applying more force than is attainable by a larger surface area with the same effort.
  • Spring tension is controlled by turning the tension control element 13. The user may selectively apply heat and air flow using the control switch 9. As the appliance 1 is pulled through the user's hair in a brushing manner, the hair may be selectively styled or strai ghtened .

Landscapes

  • Cleaning And Drying Hair (AREA)
  • Hair Curling (AREA)
  • Dry Shavers And Clippers (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

A handheld hair styling appliance 1 has an electric motor 19, electric heat element 21, and hair engaging elements 10, 11, 12 including a set of stationary extending parts with respective shearing edges 40, 41 and a set of movable extending parts having respective shearing edges 31, 32, whereby when the moving parts move relative to and in proximity with the stationary parts, the respective shearing edges of each cooperate to compress strands of hair therebetween. The movable parts are spring-mounted to a carriage 29 and are urged into close proximity with the stationary parts, such that constant pressure is applied to hair strands positioned therebetween.

Description

IMPROVED HAIR STRAIGHTENING AND STYLING APPLIANCE
Related application~PCT/BE06/000107 Filed September 29, 2006
TECHNICAL FIELD
The present invention relates to hair straightening and styling appliances and, more particularly, to a hand held appliance having an an electrically driven fan and heat element, and hair engaging means for simultaneously styling or straightening hair while applying heated air.
BACKGROUND OF THE INVENTION
Various known hair styling appliances exist in which hair is dried, heated, styled and straightened. Handheld appliances of this type typically include a heater and fan element, and a comb attachment. In these types of appliances, straightening is achieved only by combing. At least one know design comprises multiple flat surfaces that close against each other to compress hair strands between flat surfaces. This type of appliance spreads or distributes force over a relatively large surface area compared to the hair strands and it is less effective in delivering heated air to hair while the hair is compressed between the flat surfaces, preventing flowing, heated air from contacting the hair.
OBJECTS OF THE INVENTION
It is an object of the present invention to provide a handheld hair styling appliance in which hair is dried, heated, styled and straightened while avoiding the shortcomings of known 7 006159
devices. Another object of the present invention is to provide a styling appliance that efficiently applies force over a relatively small surface area to maximize force and minimize effort to achieve optimum efficiency and convenience. These and other objects are achieved by the present invention.
SUMMARY OF THE INVENTION
The present invention comprises a handheld hair styling appliance having an electric motor, electric heat element, and hair engaging elements including a set of stationary extending parts with respective shearing edges, and a set of movable extending parts having respective shearing edges, whereby when the moving parts move relative to and in proximity with the stationary parts, the respective shearing edges of each cooperate to compress strands of hair therebetween. The movable parts are spring- mounted to a carriage and are urged into close proximity with the stationary parts, such that constant pressure is applied to hair strands positioned therebetween. The respective shearing edges for each of the parts are thin edges so that only a thin profile of hair is engaged at any given instant, while the appliance is drawn through the hair as heated air is applied.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. IA is a first side view of an appliance according to the present invention.
Fig. IB is a bottom view of an appliance according to the present invention. Fig. 1C is .a second side view of an appliance according to the present invention.
Fig, ID is a top view of an appliance according to the present invention.
Fig. IE is a distal end view of an appliance according to the present invention.
Fig. IF is a cross-sectional view of an appliance according to the present invention.
Fig, IG is a proximal end view of an appliance according to the present invention.
Fig. 2 is an exploded view of an appliance according to the present invention.
Fig. 3 is an exploded view of a component of an appliance according to the present invention,
DESCRIPTION OF THE PREFERRED EMBODIMENT
An appliance 1 according to the preferred embodiment of the present invention comprises a handle portion 2, a head portion 3, a cord swivel 4, a cord extension mount 5, a proximal end 7, and a distal end 8. A metallic panel 8 and control switch 9 are provided. A plurality of central hair engaging elements 10 and a plurality of first side hair engaging elements 11 and a plurality of second side hair engaging elements 12 are mounted at the head portion 3. A tension control element 13 is mounted at the distal end 8. The body making up the handle portion 2 and the head portion 3 is preferably made of two molded halves, a first body half 14 and a second body half 15. A panel and switch assembly 16 is comprised of the metallic panel 8, the switch 9 and multiple components shown in Fig. 2. A filter cover 17 may be provided at the proximal end 6 which serves as an air intake, and is included in an end assembly 18. A fan and motor assembly 19 is housed internally in the handle portion 2. A motor and fan switching assembly 20 controls heat and air flow functions. A heater assembly 21 may comprise a standard heat element of a type generally known, and is also housed internally. Air driven by the fan assembly 20 moves air past the heater assembly 20 and heated air exits past the hair engaging elements 10, 11, 12. An electric plug 22 and cord 23 deliver power to the motor and heater assembly. The hair engaging elements 10, 11, 12 make up components of a hair engaging assembly 24 that is shown in more detai 1 in fig. 3.
The hair engaging assembly 24 comprises a central, dynamic hair engaging assembly 25 that includes a rod 26, a spring 27, a latch 28, and a base 29 to which each of the central hair engaging elements 31 are attached.. Each hair engaging element 31 comprises a generally triangular shape with a pair of extending and converting sides. The sides join near the top apex 35 and form a curved, angular surface 32. The outside edges of the sides form, respectively, first and second shearing edges 33, 34, The edges 33, 34 may be generally right-angle edges or they may have a small bevel shape. The rod 26 is received in a hole 30 to mount the base 29 for linear movement as described below.
The central hair engaging elements 10 also include a static central hair engaging assembly 36 which comprises a base 37, a plurality of extending shearing elements 38, and a central opening 39 in each element 38, The central openings 38 are sized to receive therein each respective dynamic element 31 so that, as explained below, each dynamic element moves into and out of proximity from a respective stationary elements 38. The inner edges of the stationary shearing elements 38 form first and second shearing edges 40, 41 on each stationary element 38. An apex 42 is formed at the top, A gap 43 exists between each stationary element 38, An adjustment cam 43 having bayonet-type settings is manipulated by the tension control element 13 to preset tension in the spring 27.
The first and second side hair engaging elements 11, 12 comprise respective first and second bases 45, 46 that support each of the plurality of comb-teeth-like elements 11, 12, The bases 45, 46 are fixed for stationary positioning.
In operation, a user holds the appliance 1 by the handle portion 2. The user brushes the head portion 3 into the hair as if using a styling brush. Strands of hair will contact the curved, angular surfaces 32 when entering the gaps 43. As the hair is pulled against the angular surfaces 32, the spring 27 is overcome so that the dynamic elements 31 and their base 29 move together against the spring 27 in response. This causes the 007/006159
dynamic elements 31 to move away from an adjacent stationary element 38 just enough to allow the hair to slip closer toward the bases 37, 29, thereby pinching or compressing the hair between respective shearing edges 31, 32, 4Θ , 41 as the spring 27 urges the dynamic elements 31 toward their starting point, thus clamping against the hair. By the term "shearing" as used here, it is not used in the sense of cutting or severing, but is instead used to describe shearing forces that are applied to the hair strands by two edges that pass closely adjacent each other so that an object (i.e., hair) spanning between the two edges is receiving the resultant shearing forces. By applying shearing forces as described here, and by engaging the hair only by edges rather than, for example, flat and relatively large surfaces, the hair strands are not shielded from air flow and the net force on the hair is concentrated on a much smaller surface area, thus applying more force than is attainable by a larger surface area with the same effort. One result is that the hair is more quickly and more effectively straightened with less effort or force applied by the user or the spring 27 in the appliance 1. Spring tension is controlled by turning the tension control element 13. The user may selectively apply heat and air flow using the control switch 9. As the appliance 1 is pulled through the user's hair in a brushing manner, the hair may be selectively styled or strai ghtened .

Claims

CLAIMS WHAT IS CLAIMED IS:
1. A hair styling appliance comprising: a handle portion; a head portion coaxially aligned with said handle portion on a first axis; a hair engaging assembly comprising a stationary hair engaging member extending along a second axis which said second axis extends at a generally right angle from said first axis, and a dynamic hair engaging member extending along said second axis; a stationary shearing edge defined on said stationary member; and a dynamic shearing edge defined on said dynamic member, said stationary shearing edge and said dynamic shearing edge being positioned adjacent to each other such that a strand of hair can be positioned and compressed between said respective shearing edges.
2. An appliance according to claim 1, further comprising a spring for causing said dynamic shearing edge to be biased toward said stationary shearing edge.
3. An appliance according to claim 2, wherein said spring resistance is selectively adjustable.
4. An appliance according to claim 1, further comprising an electric motor; an electric fan; and control switches for selectively controlling each of said motor and said fan.
5. An appliance according to claim 2, further comprising an angled surface on said dynamic member adapted to initially contact a user's hair and to guide force applied to said dynamic member by said hair in a direction against said spring in order to bias and move said dynamic member in a direction opposed to said spring.
6. An appliance according to claim 1, wherein said stationary member has a central opening sized and shaped to receive said dynamic element at least partially therein, and said stationary shearing edge is defined by a surface along the inner edge of said central opening, and said dynamic shearing edge is defined by a surface along the outer edge of said dynamic element.
PCT/US2007/006159 2005-06-13 2007-03-12 Improved hair straightening and styling appliance Ceased WO2007136445A2 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP05447135A EP1721539B1 (en) 2005-06-13 2005-06-13 Hair straightening device
BE06447066.9 2006-05-18
EP06447066A EP1857009A1 (en) 2005-06-13 2006-05-18 Hair straightening device
BEPCT/BE2006/000107 2006-09-29
PCT/BE2006/000107 WO2007134408A1 (en) 2005-06-13 2006-09-29 Improved hair straightening device

Publications (2)

Publication Number Publication Date
WO2007136445A2 true WO2007136445A2 (en) 2007-11-29
WO2007136445A3 WO2007136445A3 (en) 2008-03-06

Family

ID=40674138

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/BE2006/000107 Ceased WO2007134408A1 (en) 2005-06-13 2006-09-29 Improved hair straightening device
PCT/US2007/006159 Ceased WO2007136445A2 (en) 2005-06-13 2007-03-12 Improved hair straightening and styling appliance

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/BE2006/000107 Ceased WO2007134408A1 (en) 2005-06-13 2006-09-29 Improved hair straightening device

Country Status (9)

Country Link
EP (3) EP1721539B1 (en)
AT (1) ATE372693T1 (en)
AU (1) AU2006343878B2 (en)
CA (1) CA2649446A1 (en)
DE (1) DE602005002464T2 (en)
DK (1) DK1721539T3 (en)
ES (1) ES2293525T3 (en)
PL (1) PL1721539T3 (en)
WO (2) WO2007134408A1 (en)

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DE202009011098U1 (en) 2009-10-01 2011-02-17 Wik Far East Ltd. Haarglättvorrichtung
FR2968511B1 (en) * 2010-12-08 2013-10-18 Seb Sa HAIR FORMING ACCESSORY
DE202011050034U1 (en) 2011-05-04 2012-08-06 Wik Far East Ltd. Hair styling device
DE202011050030U1 (en) 2011-05-04 2012-08-06 Wik Far East Ltd. Hair styling device
DE102012108342A1 (en) * 2012-09-07 2014-03-13 JP-Features GmbH Device for styling
DE202013100192U1 (en) 2013-01-15 2014-04-16 Wik Far East Ltd. The hair styling appliance
CN106455784A (en) 2014-05-09 2017-02-22 威克远东有限公司 Hair styling appliance
USD765911S1 (en) 2016-03-25 2016-09-06 E. Mishan & Sons, Inc. Single blade hair straightener
USD766504S1 (en) 2016-03-25 2016-09-13 E. Mishan & Sons, Inc. Double blade hair straightener
CN107536224B (en) * 2016-06-24 2022-08-16 珠海金稻电器有限公司 Electric heating comb
FR3072260A1 (en) * 2017-10-17 2019-04-19 Hair Naturel SLIDE COMB WITH HOLLOW TOOTHED COMB AND FULL TOOTHED COMB
EP3524086A1 (en) * 2018-02-09 2019-08-14 Koninklijke Philips N.V. Hair straightener
CN108497672B (en) * 2018-04-17 2024-06-14 谭壮 Comb capable of preventing hair from being pulled
USD1021238S1 (en) 2022-06-02 2024-04-02 Sharkninja Operating Llc Hair care appliance
US12376660B2 (en) 2023-01-17 2025-08-05 Sharkninja Operating Llc Hot brush

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US670894A (en) * 1900-05-19 1901-03-26 Necy Ohair Emery Comb.
US1197264A (en) * 1916-06-13 1916-09-05 Norval Watson Cobb Comb.
US1861040A (en) * 1932-03-03 1932-05-31 Noburn Products Inc Hair straightening device
US3973528A (en) * 1975-02-28 1976-08-10 Clairol Incorporated Styling apparatus for hair
US4139014A (en) * 1977-04-19 1979-02-13 Rowland Willis O Combination hair styling/hair curling device
FR2725347B3 (en) * 1994-10-10 1996-08-02 Philips Electronics Nv HAIRDRESSING BRUSH
PT1429638E (en) 2001-09-25 2006-09-29 Faco Sa HAIR REMOVER AND MODELING DEVICE
AUPR815401A0 (en) * 2001-10-08 2001-11-01 Owling Pty Limited A personal grooming aid and method

Also Published As

Publication number Publication date
DK1721539T3 (en) 2008-01-14
CA2649446A1 (en) 2007-11-29
AU2006343878A1 (en) 2007-11-29
AU2006343878B2 (en) 2012-03-22
ATE372693T1 (en) 2007-09-15
EP2019605A1 (en) 2009-02-04
DE602005002464T2 (en) 2008-01-24
EP1857009A1 (en) 2007-11-21
ES2293525T3 (en) 2008-03-16
WO2007136445A3 (en) 2008-03-06
EP1721539A1 (en) 2006-11-15
DE602005002464D1 (en) 2007-10-25
PL1721539T3 (en) 2008-02-29
WO2007134408A1 (en) 2007-11-29
EP1721539B1 (en) 2007-09-12
EP2019605B1 (en) 2011-07-20

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