EP1721541A2 - Haartrocknerzusatz mit Axial- und Radialströmung - Google Patents

Haartrocknerzusatz mit Axial- und Radialströmung Download PDF

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Publication number
EP1721541A2
EP1721541A2 EP06252418A EP06252418A EP1721541A2 EP 1721541 A2 EP1721541 A2 EP 1721541A2 EP 06252418 A EP06252418 A EP 06252418A EP 06252418 A EP06252418 A EP 06252418A EP 1721541 A2 EP1721541 A2 EP 1721541A2
Authority
EP
European Patent Office
Prior art keywords
attachment
openings
barrel
outlet
dryer
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.)
Withdrawn
Application number
EP06252418A
Other languages
English (en)
French (fr)
Other versions
EP1721541A3 (de
Inventor
Luther D. Langley
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.)
Wahl Clipper Corp
Original Assignee
Wahl Clipper Corp
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 Wahl Clipper Corp filed Critical Wahl Clipper Corp
Publication of EP1721541A2 publication Critical patent/EP1721541A2/de
Publication of EP1721541A3 publication Critical patent/EP1721541A3/de
Withdrawn legal-status Critical Current

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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
    • 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

Definitions

  • the present invention relates to hair styling devices, and particularly to hand held hair dryers of the type designed for use with attachments for altering the flow of air from the barrel of a hand held dryer.
  • Hand held dryers are well known for use in styling hair and are commonly used by both individuals and professional hair stylists. It is common for such dryers to be provided with styling attachments, such as, but not limited to, combs for combing the hair while drying, diffusers for diffusing or dissipating the flow of air from the dryer barrel outlet to reduce the velocity of the dryer outlet air and spread the air over a larger surface area, and concentrators for concentrating and/or increasing the velocity of the air dispensed from the dryer barrel outlet.
  • styling attachments such as, but not limited to, combs for combing the hair while drying, diffusers for diffusing or dissipating the flow of air from the dryer barrel outlet to reduce the velocity of the dryer outlet air and spread the air over a larger surface area, and concentrators for concentrating and/or increasing the velocity of the air dispensed from the dryer barrel outlet.
  • the dryer can be turned on and air flows from the dryer, through the attachment, and out the outlet.
  • the flow of air at the outlet of the attachment is impeded or blocked, such as when the outlet is positioned adjacent the scalp, the hand held dryer can overheat causing the motor to cut out. Dryer overheating occurs when insufficient air flow escapes the attachment and backpressure builds up inside the dryer.
  • exhaust slots are provided for dispensing hot air when the diffuser is turned off and for introducing cool air when the diffuser is turned on.
  • the slots are used to prevent overheating of the dryer, air flow into the slots and out of the slots is not utilized for hair drying purposes.
  • the ingress and egress of air is concentrated at a small portion of the diffuser. That is, the air ingress and egress at the slots is uneven along the sidewall and is not utilized for radial, even drying of hair, but merely for introducing cooler air into the hot diffuser, or exhausting hot air when the diffuser is off.
  • the attachment has a plurality of holes and a blocked outlet end. While the holes of the aeration barrel allow the air to escape the attachment during operation of the dryer, which prevents the dryer from overheating, the radial air flow dispensed through the holes is too powerful for even drying of the hair when the attachment is used with a professional model dryer. Although the configuration provides air flow over the length of the attachment, the large amount of air emitted from the holes can significantly disturb the hairstyle.
  • a hair dryer attachment for use with a hand held hair dryer having a barrel with an outlet.
  • the attachment has a substantially tubular body with a perforated sidewall having a generally uniform diameter.
  • a first end of the attachment is configured for receiving the barrel, and a second end has an outlet configured for dispensing air flow from the dryer.
  • There are preferably a plurality of openings along the length of the sidewall which are configured for permitting the radial ingress and egress of air flow to and from the attachment depending on if there is a low pressure differential or a high pressure differential in the attachment, respectively.
  • an aeration barrel attachment for use with a hand held hair dryer having a barrel with an outlet
  • the attachment has a substantially tubular body.
  • the tubular body has a perforated sidewall having a generally uniform diameter with openings.
  • a first end of the attachment is configured to receive the barrel, and an outlet is configured for dispensing of air flow.
  • the attachment is configured such that when the outlet is substantially impeded, at least a portion of the air flowing into the attachment from the hand held dryer flows radially outward through the openings, and when the outlet is not substantially impeded, air flows radially inward through the openings and out the outlet.
  • a third aspect of the present invention is a combination of a hand held hair dryer and an attachment.
  • the hair dryer includes a housing and a generally tapered barrel with an outlet, the barrel being provided with at least one engagement formation for retaining the attachment thereto.
  • On the attachment at least one complementary formation is provided for releasably engaging the corresponding engagement formation for releasably locking the attachment to the barrel.
  • complementary formation is disposed on an apron of the corresponding attachment, and the apron is generally flared and configured for being supported by the barrel between the at least one engagement formation and the outlet.
  • the engagement formation is enclosed by an enclosure structure.
  • a hand held hair dryer suitable for use with the present attachment is generally designated 10, and includes a housing 12 with an air intake 14, a handle 16, at least one switch 18 for controlling heat and/or fan speed as is known in the art, and a barrel 20 having an outlet 22. It is contemplated that the number and disposition of the switches 18 may vary to suit the application as is known in the art. Also, the barrel 20 is contemplated as preferably being generally cylindrical or ovate when viewed head on, and/or slightly tapered as is common in the art. Other barrel shapes are contemplated depending on the application. If desired, a hanging loop 24 may be provided for suspending the dryer 10 when not in use. Also, it is to be understood that the dryer 10 is provided with a fan, heating element, wiring and other internal components typically found in such products.
  • the dryer 10 is provided with an aeration barrel attachment, generally designated 30.
  • the attachment 30 is releasably attachable to the barrel 20 and has a releasable locking arrangement which positively locates the attachment on the barrel to provide adequate support and to prevent unwanted disengagement of the attachment from the dryer 10.
  • the releasable locking arrangement is disclosed in U.S. Patent No. 6,775,922 to Langley et al. , herein incorporated by reference.
  • the present system includes a fastening system including at least one engagement formation 26 on the barrel 20 for retaining a styling attachment thereto and a corresponding at least one complementary formation 28 on the attachment 30.
  • the engagement formations 26 are radially extending lugs
  • the complementary formations 28 are "J"-shaped bayonet-type notches or recesses disposed on an apron 38 of the attachment.
  • a bayonet-lug attachment arrangement is provided, as is known in the mechanical arts.
  • the attachment 30 may be positioned upon the dryer 10 in one of four orientations.
  • the complementary formation 28 encloses the engagement formation 26 with an enclosure structure 29.
  • the enclosure structure 29 is preferably flush with the outside of the attachment 30 and extends over the notch of the complementary formation 28. In this configuration, the enclosure structure 29 strengthens the complementary formation 28 to prevent accidental deformation of the notch.
  • the barrel 20 of the dryer 10 is relatively short compared to conventional or "standard-size" dryers used by professional stylists and/or individuals.
  • the length of the barrel 20 is measured from a first end 32 beginning at a general vertical line defined by a front edge 34 of the handle 16, and in the present dryer 10 is also represented by an optional ornamental shoulder 36 on the housing 12, and the outlet 22.
  • the attachment 30 forms a part of the overall barrel of the dryer 10, and as such shortens the working length of the dryer while providing a variety of styling alternatives.
  • the apron 38 is generally flared, having a larger diameter at a first end 40 than a second end 42 which is adjacent a working portion 44 of the attachment 30. Also, the complementary formations 28 are located closely adjacent the first end 40.
  • the apron 38 is configured for being supported by the barrel 20 between the engagement formations 26 and the outlet 22. As such, the apron 38 is slidably and rotatably engageable on the barrel 20 for easy installation and removal by the user. At the same time, the apron 38 is intended to be positively located on the barrel 20.
  • the apron 38 In addition to the engaging formations 26, 28 and the physical support provided by the close proximity of the barrel 20 to the apron 38 (best seen in FIG. 2), the apron 38 also optionally locates the outlet 22 in a positive and consistent manner. This location is obtained with an optional stop 46, which in the preferred embodiment is a shoulder formed by the apron 38 as it is attached to the working portion 44.
  • the attachment 30 is referred to as an aeration barrel attachment having a substantially tubular body 50 provided with a perforated sidewall 52 of generally constant diameter with rows of openings 54.
  • the first end 38 of the attachment 30, also referred to as the apron receives the barrel 20, and an outlet end 58 is configured to dispense the axial air flow.
  • the attachment 30 is preferably provided with a plurality of axially spaced, radially projecting annular ribs 60 which are secured to, or integrally formed with the sidewall 52.
  • the rows of preferably generally circular openings 54 are preferably disposed on the sidewall between the annular ribs 60.
  • the air travels through the barrel 20 of the dryer and is constricted as it enters the attachment 30.
  • the air flow enters an area of constriction, its velocity increases and the pressure within the constriction drops. This is known as a Venturi effect.
  • the localized area of low pressure within the constriction i.e. the attachment 30
  • causes the ambient air to move from high pressure to low pressure that is, the air flows from outside the sidewall 52 through the openings 54 and into the attachment 30 where it combines with the air from the dryer and exits out the outlet end 58. Since additional air flow is introduced to the system through the sidewall 52, the openings 54 provide additional air flow dispensed at the outlet end 58, generally in the order of 5-10% more volumetric flowrate than the dryer alone.
  • the attachment 30 creates an air stream under the hair, in effect sucking the moisture from the hair strands into the attachment.
  • the ribs 60 are designed to part and separate the hair, strands of which are sucked towards the openings 54 in the sidewall 52, and between the ribs.
  • the attachment 30 is intended to be used with a comb or a brush.
  • the hair is dried from the root to the tip, preferably without overheating or drying out the scalp, herein referred to as radial drying.
  • radial drying a gentle alternative is provided to the relatively violent and aggressive turbulence associated with standard barrel dryers set at high heat/high fan speed.
  • radial drying provides an alternative to drying the hair with a concentrated flow at the outlet end 58, herein referred to as axial drying (FIG. 4).
  • the present attachment 30 of the present invention is configured for both axial drying and radial drying.
  • the openings 54 are disposed along the length of the sidewall 52, and are preferably circular and preferably of different sizes depending on their location on the attachment 30.
  • the first three rows located towards the outlet end 58 are the smallest, the diameter of the openings 54S being approximately 3/16 of an inch (4.8 mm), the last three rows located towards the apron 38 are the largest, the diameter of the openings 54L being approximately 5/16 of an inch (7.9 mm), and the middle two rows are medium sized, the diameter of the openings 54M being approximately 1 ⁇ 4 of an inch (6.3 mm) in diameter.
  • the openings 54 are configured to dispense air flow while the dryer is on, and further, is configured to dispense air evenly along the length of the sidewall 52, to effectively utilize the released air for radial drying.
  • the attachment 30 is positioned such that the air flow is significantly impeded at the outlet end 58, such as by positioning the outlet adjacent the scalp, a pressure backup forms within the attachment 30.
  • the attachment 30 is configured to dispense the air flow generally evenly over the length of the sidewall for radial drying.
  • openings 54S are located on the sidewall where more backpressure accumulates inside the attachment, and larger openings 54L are located where less backpressure accumulates.
  • Medium sized openings 54M are located on the sidewall 52 where a medium amount of backpressure accumulates.
  • the present attachment for a hand held dryer provides even drying capabilities whether there is impedance at the outlet or not.
  • the direction of air flow at the openings 54 switches from ingress to egress depending on whether there is a low pressure or high pressure differential inside the attachment 30 as compared to the ambient (i.e. whether the air flow is significantly impeded at the outlet end 58).
  • the air is sucked at the openings 54, and when there is significant impedance, the air is blown from the openings.
  • radial drying of the hair can occur at the sidewall regardless of whether there is ingress or egress of air at the openings 54.

Landscapes

  • Cleaning And Drying Hair (AREA)
EP06252418A 2005-05-09 2006-05-06 Haartrocknerzusatz mit Axial- und Radialströmung Withdrawn EP1721541A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/124,813 US20060248744A1 (en) 2005-05-09 2005-05-09 Hair dryer attachment with axial and radial flow

Publications (2)

Publication Number Publication Date
EP1721541A2 true EP1721541A2 (de) 2006-11-15
EP1721541A3 EP1721541A3 (de) 2009-07-22

Family

ID=36778159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06252418A Withdrawn EP1721541A3 (de) 2005-05-09 2006-05-06 Haartrocknerzusatz mit Axial- und Radialströmung

Country Status (8)

Country Link
US (1) US20060248744A1 (de)
EP (1) EP1721541A3 (de)
JP (1) JP2006314787A (de)
CN (1) CN1864586A (de)
AR (1) AR053382A1 (de)
AU (1) AU2006201748A1 (de)
CA (1) CA2544168A1 (de)
NZ (1) NZ546818A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2392223A3 (de) * 2010-06-03 2013-01-09 Han Hian Yoe Düse für Fön
US11259615B2 (en) * 2020-03-12 2022-03-01 Shenzhen Airgle Corporation Limited Hair dryer

Families Citing this family (8)

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JP4671302B2 (ja) * 2007-09-13 2011-04-13 九州日立マクセル株式会社 収束ノズルを備えたヘアードライヤー
US8407913B2 (en) * 2007-09-27 2013-04-02 Wahl Clipper Corporation Conditioner infuser for hair dryer attachment
CN201468342U (zh) * 2009-03-24 2010-05-19 尤亨利 一种用于吹风机上的集风嘴
DE102009027317B4 (de) * 2009-06-30 2019-12-05 Robert Bosch Gmbh Werkzeug
US9185958B2 (en) * 2012-01-20 2015-11-17 Serafino Torres Hair dryer attachment
JP5768221B2 (ja) * 2012-08-23 2015-08-26 パナソニックＩｐマネジメント株式会社 送風装置
US9635922B2 (en) * 2014-12-18 2017-05-02 Darren Logsdon Humidification assembly
CN112336040A (zh) * 2020-11-05 2021-02-09 佛山市肯葳美发用品制造有限公司 一种增压风罩

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2392223A3 (de) * 2010-06-03 2013-01-09 Han Hian Yoe Düse für Fön
US11259615B2 (en) * 2020-03-12 2022-03-01 Shenzhen Airgle Corporation Limited Hair dryer

Also Published As

Publication number Publication date
CN1864586A (zh) 2006-11-22
US20060248744A1 (en) 2006-11-09
CA2544168A1 (en) 2006-11-09
JP2006314787A (ja) 2006-11-24
EP1721541A3 (de) 2009-07-22
NZ546818A (en) 2007-11-30
AU2006201748A1 (en) 2006-11-23
AR053382A1 (es) 2007-05-02

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