EP0631738B1 - Luftdusche, insbesondere zum Trocknen von Haaren - Google Patents

Luftdusche, insbesondere zum Trocknen von Haaren Download PDF

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Publication number
EP0631738B1
EP0631738B1 EP94109137A EP94109137A EP0631738B1 EP 0631738 B1 EP0631738 B1 EP 0631738B1 EP 94109137 A EP94109137 A EP 94109137A EP 94109137 A EP94109137 A EP 94109137A EP 0631738 B1 EP0631738 B1 EP 0631738B1
Authority
EP
European Patent Office
Prior art keywords
housing
air blower
intake opening
blower according
opening
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.)
Expired - Lifetime
Application number
EP94109137A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0631738A1 (de
Inventor
Willi Keitzer
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.)
Ermila Friseurgerate GmbH
Original Assignee
Ermila Friseurgerate GmbH
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 Ermila Friseurgerate GmbH filed Critical Ermila Friseurgerate GmbH
Publication of EP0631738A1 publication Critical patent/EP0631738A1/de
Application granted granted Critical
Publication of EP0631738B1 publication Critical patent/EP0631738B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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 invention relates to an air shower according to the preamble of claim 1.
  • Such an air shower is known from the document "Patent Abstracts of Japan” for JP-A-52-120057.
  • the fan is provided directly in the flow direction behind the suction opening and in its axis in order to move the fresh air to the fan opening with as little loss as possible.
  • a sometimes enormous, disruptive noise development occurs, which is caused by the fan in the area of the suction opening or the following space part of the interior of the housing.
  • the invention has set itself the task of reducing the noise pollution by the fan to a tolerable level.
  • suction openings are rotationally symmetrical, for example in the form of circular cross sections, and are arranged coaxially.
  • the noise level caused by the fan is reduced by a surprisingly high amount compared to a same air shower without the housing attachment.
  • the difference in the flow cross sections of the two intake openings can be relatively small, so that the additional pressure drop does not appear to reduce performance.
  • the housing attachment is designed as a rotationally symmetrical component, the axis of rotation of which can coincide with that of one or both suction openings.
  • a structurally favorable and aesthetically satisfactory solution is obtained if the first suction opening is provided in a wall of the housing, the border of which is flush with a first end face of the housing attachment.
  • the shape of the housing chamber is relatively variable. It is thus possible for the housing attachment to have a cylindrical or frustoconical peripheral part which connects the first end face lying against the housing to a second end face in which the second suction opening is located.
  • a further improvement in the noise level can be achieved if in the housing attachment at least one baffle connects perpendicular to the peripheral part, which is provided with a rotationally symmetrical flow opening, the flow opening of the baffle advantageously having a flow cross-section which, depending on its distance from the first or second suction opening to their flow cross-sections is linear and is larger than that of the second and smaller than that of the first suction opening.
  • a housing attachment of this type can be detachably connected to an air shower, but it can also be made in one piece with its housing, for example if it is composed of two parts. There are also no special requirements for the material to be used. It makes sense to manufacture the housing and the housing attachment from the same material.
  • the air shower can be designed to be both stationary and portable; in the latter case, a handle is provided in a known manner, which is also used for power supply.
  • a portable air shower according to the invention initially has, according to FIG. 1, a housing 1 in which all the components required for the function of the air shower are accommodated.
  • a handle 2 is firmly connected to the housing 1.
  • the housing 1 is essentially rotationally symmetrical and is closed on the right side of FIG. 1 with an end face 11 in which a first suction opening 12 is located.
  • the suction opening 12 is designed as a circular cross section and coaxial to a likewise circular fan opening in a left end face 14 of the housing 1 in FIG. 1.
  • an electric motor 3 is provided in the interior 15 of the housing 1, which drives a fan 4 , wherein both components are provided in the axis 10 of the air shower or the housing 1.
  • the fan 4 here designed as a radial fan, is located in the immediate vicinity of the suction opening 12, the housing interior 15 being separated from the surroundings U by a sieve 5 above the suction opening 12.
  • the screen 5 prevents foreign bodies from entering the housing interior 15 and at the same time provides protection against accidental contact for the rotating fan 4.
  • the fan opening 13 is equipped with a shower 6 for controlling the air flow emerging.
  • Directional arrows 71 and 72 illustrate the air flow generated by the fan 4. Further components required for the operation of the air shower, which are not directly related to the invention, have been omitted from the schematic illustration of the drawing.
  • the end face 11 of the housing 1 is circular;
  • the housing attachment 8 it is also possible for the housing attachment 8 to be made in one piece with the housing 1, the overall housing then possibly being composed of two longitudinally cut housing halves. Without departing from the invention, the construction of the housing 1, the housing attachment 8 or a connection of the two parts is therefore largely variable.
  • the housing 1 and the housing attachment 8 enclose a housing chamber 80.
  • the housing attachment 8 connects with a first end face 81 to the end face 11 of the housing 1.
  • An end face 82 which is connected to the end face 81 by a frustoconical peripheral part 83, is provided with a second suction opening 84, which is coaxial with the first suction opening 12. Its diameter D is larger than the diameter d of the suction opening 84.
  • peripheral part 83 is designed as a circular cylinder.
  • baffles 85 are provided within the housing attachment according to FIG. 3 or 4. 3 or as truncated cone-like inserts according to FIG. 4.
  • Other designs are also conceivable, in particular the number of guide plates 85 is not limited. It is only essential that the flow openings provided in the baffles 85 86 have a flow cross section, the size of which lies between that of the flow cross sections determined by the suction openings 12 and 84.
  • An auxiliary cone 87 is intended to indicate that the diameters of the individual flow cross sections behave like their distances from one another.
  • the screen 5 can also be provided directly at the second suction opening 84, which is provided here in a truncated cone-shaped recess 88, which likewise contributes to noise reduction, just as a guide plate 89, which, in contrast to the guide plates 85 is formed as a hollow circular cylinder and is connected to the second end face 82.

Landscapes

  • Cosmetics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Hair Curling (AREA)
  • Ventilation (AREA)
EP94109137A 1993-06-17 1994-06-15 Luftdusche, insbesondere zum Trocknen von Haaren Expired - Lifetime EP0631738B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9309013U DE9309013U1 (de) 1993-06-17 1993-06-17 Luftdusche, insbesondere zum Trocknen von Haaren
DE9309013U 1993-06-17

Publications (2)

Publication Number Publication Date
EP0631738A1 EP0631738A1 (de) 1995-01-04
EP0631738B1 true EP0631738B1 (de) 1996-09-25

Family

ID=6894518

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94109137A Expired - Lifetime EP0631738B1 (de) 1993-06-17 1994-06-15 Luftdusche, insbesondere zum Trocknen von Haaren

Country Status (4)

Country Link
EP (1) EP0631738B1 (es)
AT (1) ATE143229T1 (es)
DE (2) DE9309013U1 (es)
ES (1) ES2094592T3 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19635933B4 (de) * 1996-09-05 2007-11-29 Braun Gmbh Haarpflegegerät
US8407913B2 (en) * 2007-09-27 2013-04-02 Wahl Clipper Corporation Conditioner infuser for hair dryer attachment
FR2926704B1 (fr) 2008-01-25 2013-02-01 Velecta Paramount Silencieux pour appareil de sechage et seche-cheveux silencieux
EP2327327A1 (en) 2009-11-26 2011-06-01 Babyliss Faco S.A. Add-on silencer for hairdryer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH588835A5 (en) * 1975-10-27 1977-06-15 Gimelli & Co Ag Hot air hair dryer - has two stage control by grip switch and rod acting on pressure switches in lengthways movements from handle
DE2708117A1 (de) * 1977-02-25 1978-08-31 Wilhelm Kruk Nachf Geraet zur erzeugung eines warmluftstrahls
DE8805910U1 (de) * 1988-05-04 1988-06-16 Merges, Marco, 5000 Köln Vorrichtung zur Geräuschdämpfung eines Föns
DE4119020A1 (de) * 1991-06-09 1992-12-10 Braun Ag Haartrockner
DE9308666U1 (de) * 1993-06-09 1993-08-19 Yi-Jsang Enterprises Co., Ltd., Yung Kang Hsiang, Tainan Ein erneuerter Haartrockner

Also Published As

Publication number Publication date
ES2094592T3 (es) 1997-01-16
DE59400727D1 (de) 1996-10-31
EP0631738A1 (de) 1995-01-04
DE9309013U1 (de) 1994-11-03
ATE143229T1 (de) 1996-10-15

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