EP0735831B1 - Verstellbarer pulsator - Google Patents
Verstellbarer pulsator Download PDFInfo
- Publication number
- EP0735831B1 EP0735831B1 EP95900673A EP95900673A EP0735831B1 EP 0735831 B1 EP0735831 B1 EP 0735831B1 EP 95900673 A EP95900673 A EP 95900673A EP 95900673 A EP95900673 A EP 95900673A EP 0735831 B1 EP0735831 B1 EP 0735831B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- pulsator
- rotor
- moving
- housing portion
- 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
Links
- 230000010349 pulsation Effects 0.000 claims abstract description 14
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000000284 resting effect Effects 0.000 claims 1
- 238000001035 drying Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003803 hair density Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
- A45D20/122—Diffusers, e.g. for variable air flow
- A45D20/124—Diffusers, e.g. for variable air flow comprising rotating elements
Definitions
- the invention relates to an air-flowable pulsator for an electric hair dryer, which essentially produces a pulsating air flow in one tubular housing part with a longitudinal axis rotatably mounted rotor with drive elements that come out of the hair dryer with the Air flow can be acted upon and the rotor in the exit direction of the air flow a stator provided with means for varying the pulsation frequency is arranged in front.
- Such a pulsator is already known from CH 682 293 A5.
- the air deflecting means are in the form of mutually parallel slats a concentric about the air duct axis rotatable lamellar ring and the The rotor is mounted on an axis of rotation arranged perpendicular to the air duct axis.
- the air duct is alternated opened and closed. This causes the blow dryer to blow through generated air flow pulsed following the pulsator and straight from the hair dryer exit.
- a pulsator which one Rotor coaxially mounted to the air outlet of the hair dryer housing with several has parallel wings and a right-angled wing.
- the wings arranged in parallel are approximately equally inclined, while the right-angled wing Wing on opposite sides of the axis of rotation after each opposite Directions is inclined. Impinges the airflow exiting the hair dryer one of the inclined surfaces of the right-angled wing, the rotor is in Rotation offset, the parallel wings a swirl of the exiting Cause airflow.
- This airflow is said to be a pulsating separation and Cause lifting of the hair to be dried.
- the invention is therefore based on the problem of a known pulsator in this regard to further develop that the rotor is structurally simple and can be produced with little effort and the air flow emerging from the pulsator can be varied.
- this is a structurally simple and therefore also with little effort manufacturable design of the rotor specified, with the design of the stator the air flow emerging from the pulsator can also be varied.
- the air flow emerging from the pulsator can also be varied.
- the air gets through the stator already has an orientation in the form of a rotational movement, which causes the drive elements flow is effective and the rotor is driven, resulting in a desired pulsating effect.
- the means for varying the pulsation frequency enable the user to use a pulsation frequency of different strengths as required adjust, making the hair advantageous depending on the hair density or degree of drying can be raised and / or swirled more or less.
- the pulsation of the air flow is completely eliminated, so that the hair dryer can then be used in the usual way without the pulsator from Hair dryer must be removed.
- the rotor itself does not need any additional special parts to make the rotary movement, i.e. to generate the swirl of the air flow.
- Such a pulsator is therefore essentially for all hair dryers, including hair dryers with a low air flow, to generate a pulsating air flow applicable and can also be manufactured relatively easily.
- the stator advantageously has guide vanes whose angle of attack with respect to the Longitudinal axis of the pulsator is changeable.
- the airflow receives guide vanes with respect to the pulsator axis differently strong swirl, i.e. it turns into a varying amount of rotation around its own Axis offset and thus causes a different rapid rotation of the rotor.
- each of the guide vanes pivotable on a bearing rings Spoke is mounted, the spokes preferably being radial in the tubular Housing part are arranged is a structurally simple adjustment for the guide vanes are provided.
- the guide blades have an arm on one side on, which lies in an opening in the tubular housing part and on carries a pin at its free end.
- spring arms are formed on the cam ring, that slide with their free end on a flat surface of the federal government. Thereby creates a friction brake, which turns off automatically Curve ring and outer ring existing unit prevented, with which unwanted changes in the angular position of the guide vanes excluded becomes.
- the drive elements are as Deflection blades and center rib formed and the deflection blades in arranged essentially parallel to each other in the rotor.
- This arrangement of Deflecting vanes causes the airflow from the longitudinal axis to one certain angle is deflected and the axis of the rotation of the rotor Airflow describes a cone jacket.
- the deflecting vanes have essentially the same curvature will have an almost over the entire air outlet cross-section causes uniform deflection of the air flow.
- the drive elements of the Rotors designed as spokes and rib.
- the swirled, i.e. Airflow rotated about its axis hits the Spokes and the rib on, which drives and deflects the rotor.
- the rotor advantageously has an air outlet partially and eccentrically closing plate on. So that the airflow can only come from the Leaving the remaining cross-section, the axis of the air flow approximately in Center of gravity of the remaining cross-section lies and when the rotor rotates describes a circular path.
- the adjustment of the guide vanes and thus the With this configuration, the pulsation frequency can already be increased described manner.
- the rotor with one axis is preferred stored in two bearing sleeves, each on an air outlet grille and in the center are provided between the spokes. This arrangement enables one slight rotation of the rotor and ensures precise storage.
- a hair dryer 10 (only partially shown) a pulsator 12 can be coupled.
- a pulsator 12 instructs tubular housing part 13 on an air inlet side 14 fasteners 15 on, by means of which a detachable connection between hair dryer 10 and Pulsator 12 can be realized.
- On the side of the air outlet 16 covers Air outlet grille 17 which is essentially tubular housing part 13, which forms the pulsator housing.
- the rotor 20 for generating the pulsating Air flow has a hub 21, in which an axis 25 made of steel is inserted.
- Deflection vanes 22 are provided as drive elements 11 essentially parallel to each other within a ring segment 23 (Fig.4) are arranged and approximately the same curvature exhibit.
- a rotor is located in front of the rotor 20 in the direction of the air outlet 16 38 with spokes 26.
- arms 29 are provided in each case, which pass through openings 30 in the tubular housing part 13 lie.
- the arms 29 are curved so that they are the follow the curvature of the tubular housing part 13.
- At its free end the arms 29 have a molded-on pin 31 which fits into one helical slot 36 of a cam ring 32 protruding is arranged.
- the cam ring 32 is at least by an outer ring 33 partially covered and by means of this on a collar 34 of the tubular Housing part 13 set.
- the outer ring 33 and the cam ring are preferred 32 connected by means of locking means 35.
- the rotor 20 is preferably mounted in two bearing sleeves 18, 19 which on Air outlet grille 17 and are provided centrally between the spokes 26. With corresponding design changes, this is also possible Storage in a bearing sleeve.
- the air flows out of the hair dryer 10 in In the direction of the air outlet 16, it first meets the spokes 26 with the Guide vanes 28.
- Used by the user by rotating the outer ring 33 and thus on the cam ring 32 with respect to the angular position of the guide vanes 28 changed the longitudinal axis of the pulsator 12 so that it deviates from zero the air flow a swirl.
- This air flow acts on the deflector blades 22 and the central rib 24 (Fig.4), which correspond to the drive elements 11 and the Set rotor 20 in rotation.
- the user can thus by rotating the outer ring 33 Change the angular position of the guide vanes 28 and thereby the pulsation frequency influence, depending on whether a strongly or weakly pulsating Airflow is desired.
- the pivot angle of the guide vanes 28 moves preferably in a range from -5 ° to + 15 ° with respect to the zero position (Fig.5).
- the pulsation frequency is also up Zero and the hair dryer 10 acts approximately like a device without a pulsator 12. It can also be used to manufacture hair dryers with an integrated pulsator, since the optional generation of both a non-pulsating and one pulsating air flow is possible without changes to the device.
- FIG. 2 shows a sectional view of the pulsator 12.
- the stator 38 has preferably three spokes 26 which are arranged radially. In the middle between the spokes 26, the axis 25 of the rotor 20 is inserted into the hub 21.
- the Spokes 26 carry guide vanes 28 by means of bearing rings 27 outer end of the arms 29 are provided, which with their pin 31 in the Openings 30 protrude into the tubular housing part 13. Is covered the tubular housing part 13 through the cam ring 32 on the spring arms 37 are molded.
- These spring arms 37 slide with their free ends on one Flat surface of a collar 34 of the tubular housing part 13 (Fig. 1), whereby a friction brake is created, which prevents the outer ring 33 and Turn the cam ring 32 automatically and thereby a change in Angular position of the guide vanes 28 during handling regardless of User can be done.
- the centric in the rotor 20 is Hub 21 provided.
- the drive elements 11 are clearly recognizable in shape of deflecting blades 22, which run parallel to one another and are approximately the same are curved, the curvature being substantially in the front view the same area appears, as well as the midrib 24 (Fig. 4).
- the change in the angular position of the Guide vanes 28 illustrates.
- the spokes 26 are cylindrical Part enclosed by the bearing rings 27, which the guide vanes 28th store swivel.
- the pin 31, which is arranged on the arm 29, changes at Rotation on the cam ring 32 its position with respect to the tubular Housing part 13, since it in the helical slots 36 of the cam ring 32 slides.
- the pin 31 causes a change in Angular position of the guide vanes 28.
- the molded on the cam ring 32 Spring arms 37 slide on a flat surface of the collar 34 (FIG. 1). They form one Friction brake, which prevents the rings 32, 33 from turning back unintentionally (FIG. 1) and an automatic change in the angular position of the guide vanes 28 is prevented regardless of the user.
- a rotor 41 consists a ring segment 44 with a hub 42, which is analogous to the first Embodiment for the rotatable mounting of the rotor element 41 is used.
- Preferably three spokes 43 are at approximately the same distance in the ring segment 44 arranged.
- a plate 46 is located opposite the spokes 43 provided that partially and eccentrically closes the air outlet cross section.
- a rib 45 is provided approximately in the center of the plate 46.
- Will now be a Air flow directed towards air outlet 16 it becomes analogous to the first Embodiment on the stator 38 upstream of the rotor 41 with a Provide swirl and acts with this swirl on the drive elements 11 - the Spokes 43 and rib 45.
- This air flow causes the rotor to rotate 41, the plate 46 partially covering the air outlet cross section and thereby the exiting air is given a pulsation effect.
- the adjustment of the Angular position of the guide vanes 28 for changing the rotor speed and thus the pulsation frequency takes place analogously to the first embodiment.
Description
- Fig. 1
- Einen Längsschnitt durch den Pulsator in Ebene B-B der Fig. 2;
- Fig. 2
- einen Querschnitt durch den Pulsator in Ebene A-A der Fig. 1, wobei der Kurvenring nicht geschnitten ist;
- Fig. 3
- eine Ansicht des Pulsators in Richtung D der Fig. 1;
- Fig. 4
- eine Ansicht des Rotors in Richtung E der Fig. 1;
- Fig. 5
- einen Querschnitt durch eine Speiche in Ebene C-C der Fig. 2;
- Fig. 6
- eine Abwicklung des Kurvenringes mit Bezug auf Fig. 2;
- Fig. 7
- einen Längsschnitt des Rotors gemäß einem zweiten Ausführungsbeispiel;
- Fig. 8
- eine Ansicht des Rotors der Fig. 7 in Richtung F.
Claims (12)
- Luftdurchströmbarer Pulsator (12) für einen elektrischen Haartrockner (10), der zur Erzeugung eines pulsierenden Luftstromes einen in einem im wesentlichen rohrförmigen, eine Längsachse aufweisenden Gehäuseteil (13) drehbar gelagerten Rotor (20, 41) mit Antriebselementen (11) aufweist, die mit dem aus dem Haartrockner (10) austretenden Luftstrom beaufschlagbar sind, und in Austrittsrichtung des Luftstromes dem Rotor (20, 41) ein mit Mitteln zur Variation der Pulsationsfrequenz versehener Stator (38) vorgelagert ist, dadurch gekennzeichnet, daß die Drehachse des Rotors (29) koaxial in dem Gehäuseteil (13) angeordnet ist und der Luftstrom mittels des Stators in eine Drehbewegung um die Längsachse des Gehäuseteils (13) versetzbar ist.
- Luftdurchströmbarer Pulsator nach Anspruch 1, dadurch gekennzeichnet, daß der Stator (38) Leitschaufeln (28) aufweist, deren Anstellwinkel bezüglich der Längsachse (47) des Pulsators (12) veränderbar ist.
- Luftdurchströmbarer Pulsator nach Anspruch 2, dadurch gekennzeichnet, daß jede der Leitschaufeln (28) mittels Lagerringen (27) schwenkbar auf einer Speiche (26) gelagert ist, wobei die Speichen (26) vorzugsweise radial im rohrförmigen Gehäuseteil (13) angeordnet sind.
- Luftdurchströmbarer Pulsator nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Leitschaufeln (28) einseitig einen Arm (29) aufweisen, der in einem Durchbruch (30) des rohrförmigen Gehäuseteiles (13) liegt und an seinem freien Ende einen Zapfen (31) trägt.
- Luftdurchströmbarer Pulsator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß auf dem rohrförmigen Gehäuseteil (13) ein Kurvenring (32) mit schraubenlinienförmigen Schlitzen (36) gelagert ist, in welche die Zapfen (31) der Arme (29) eingreifen, wobei vorzugsweise der Kurvenring (32) durch einen äußeren Ring (33) an einem Bund (34) des rohrförmigen Gehäuseteiles (13) axial positioniert ist.
- Luftdurchströmbarer Pulsator nach Anspruch 5, dadurch gekennzeichnet, daß am Kurvenring (32) Federarme (37) angeformt sind, die mit ihrem freien Ende auf einer Planfläche des Bundes (34) gleiten.
- Luftdurchströmbarer Pulsator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Antriebselemente (11) als Ablenkschaufeln (22) und Mittelrippe (24) ausgebildet und die Ablenkschaufeln (22) im wesentlichen parallel zueinander im Rotor (20) angeordnet sind.
- Luftdurchströmbarer Pulsator nach Anspruch 7, dadurch gekennzeichnet, daß die Ablenkschaufeln (22) im wesentlichen die gleiche Krümmung aufweisen.
- Luftdurchströmbarer Pulsator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Antriebselemente (11) des Rotors (41) als Speichen (43) und Rippe (45) ausgebildet sind.
- Luftdurchströmbarer Pulsator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Rotor (20, 41) mit einer Achse (25) vorzugsweise in zwei Lagerhülsen (18, 19) gelagert ist, die jeweils an einem Luftaustrittsgitter (17) sowie mittig zwischen den Speichen (26) vorgesehen sind.
- Luftdurchströmbarer Pulsator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Rotor (41) eine einen Luftaustritt (16) partiell und exzentrisch verschließende Platte (46) aufweist.
- Luftdurchströmbarer Pulsator nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß der Rotor (20) als kontinuierlich durchströmbarer Strömungsablenker ausgebildet ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4344109A DE4344109A1 (de) | 1993-12-23 | 1993-12-23 | Verstellbarer Pulsator |
DE4344109 | 1993-12-23 | ||
PCT/EP1994/003639 WO1995017113A1 (de) | 1993-12-23 | 1994-11-05 | Verstellbarer pulsator |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0735831A1 EP0735831A1 (de) | 1996-10-09 |
EP0735831B1 true EP0735831B1 (de) | 1998-04-08 |
Family
ID=6505954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95900673A Expired - Lifetime EP0735831B1 (de) | 1993-12-23 | 1994-11-05 | Verstellbarer pulsator |
Country Status (7)
Country | Link |
---|---|
US (1) | US5720107A (de) |
EP (1) | EP0735831B1 (de) |
AT (1) | ATE164733T1 (de) |
AU (1) | AU8140694A (de) |
CA (1) | CA2179725C (de) |
DE (2) | DE4344109A1 (de) |
WO (1) | WO1995017113A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19641099C2 (de) * | 1996-10-04 | 1999-04-29 | Braun Ag | Laufrad in einem Haartrockner oder Haartrocknerzusatzgerät |
US6732449B2 (en) | 2000-09-15 | 2004-05-11 | Walter Evanyk | Dryer/blower appliance with efficient waste heat dissipation |
GB2374801B (en) * | 2001-04-27 | 2003-03-26 | Richards Morphy N I Ltd | Improvements to hairdryers |
US20040168337A1 (en) * | 2002-12-12 | 2004-09-02 | Caitlyn Curtin | Hands-free hair and body dryer that allows a wide range of motion |
US6966125B2 (en) * | 2003-09-18 | 2005-11-22 | Shoot The Moon Products Ii, Llc | Automatic air movement for hair dryers |
US7178261B2 (en) * | 2004-03-05 | 2007-02-20 | Wahl Clipper Corporation | Air pulsing attachment for handheld dryer |
EP2160954A1 (de) * | 2008-09-08 | 2010-03-10 | Koninklijke Philips Electronics N.V. | Haartrockner, Aufsatz für einen Haartrockner und mit einem solchen Aufsatz versehener Haartrockner |
JP2014030722A (ja) * | 2012-08-01 | 2014-02-20 | Kiss Medical Technologies Inc | ヘアドライヤーのための回転式空気指向装置 |
US9883726B2 (en) * | 2015-12-20 | 2018-02-06 | Shih-Ling Hsu | Hair dryer with improved outlet unit |
US10973298B2 (en) * | 2017-09-12 | 2021-04-13 | The Beachwaver Co. | Digitally controlled hairdryer |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4019260A (en) * | 1975-06-04 | 1977-04-26 | Sperry Rand Corporation | Hair treatment method and device |
US4132360A (en) * | 1977-08-22 | 1979-01-02 | General Electric Company | Pulsating hair dryer |
US4295283A (en) * | 1979-05-21 | 1981-10-20 | Conair Corporation | Air diffuser for a hair dryer |
CA1183345A (en) * | 1981-07-13 | 1985-03-05 | Sunbeam Corporation | Pulsator hair dryer |
CH682292A5 (de) * | 1990-02-06 | 1993-08-31 | Spemot Ag | |
CH680978A5 (en) * | 1990-02-09 | 1992-12-31 | Spemot Ag | Pulsator for airflow in hair-drier - has rotor disc with vanes and fixed disc both with segments cut=out, and uses centrifugal brakes to control rotor speed |
CH682293A5 (en) * | 1990-02-13 | 1993-08-31 | Spemot Ag | Pulsator for electric hair-dryer air channel - uses baffle lamella elements and rotor with rotation axis perpendicular to air flow direction |
DE9016029U1 (de) * | 1990-11-24 | 1991-03-14 | Fedtke, Stephen, 2000 Hamburg, De | |
CH682291A5 (de) * | 1991-02-13 | 1993-08-31 | Spemot Ag | |
US5392528A (en) * | 1992-06-16 | 1995-02-28 | Isis International Inc. | Hair dryers |
-
1993
- 1993-12-23 DE DE4344109A patent/DE4344109A1/de not_active Ceased
-
1994
- 1994-11-05 AU AU81406/94A patent/AU8140694A/en not_active Abandoned
- 1994-11-05 CA CA002179725A patent/CA2179725C/en not_active Expired - Fee Related
- 1994-11-05 DE DE59405664T patent/DE59405664D1/de not_active Expired - Fee Related
- 1994-11-05 EP EP95900673A patent/EP0735831B1/de not_active Expired - Lifetime
- 1994-11-05 US US08/663,246 patent/US5720107A/en not_active Expired - Fee Related
- 1994-11-05 AT AT95900673T patent/ATE164733T1/de not_active IP Right Cessation
- 1994-11-05 WO PCT/EP1994/003639 patent/WO1995017113A1/de active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ATE164733T1 (de) | 1998-04-15 |
DE4344109A1 (de) | 1995-06-29 |
EP0735831A1 (de) | 1996-10-09 |
CA2179725C (en) | 1999-07-20 |
CA2179725A1 (en) | 1995-06-29 |
US5720107A (en) | 1998-02-24 |
AU8140694A (en) | 1995-07-10 |
DE59405664D1 (de) | 1998-05-14 |
WO1995017113A1 (de) | 1995-06-29 |
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