EP1326738A1 - Elektrisch betriebenes haarentfernungsgerät - Google Patents
Elektrisch betriebenes haarentfernungsgerätInfo
- Publication number
- EP1326738A1 EP1326738A1 EP01988647A EP01988647A EP1326738A1 EP 1326738 A1 EP1326738 A1 EP 1326738A1 EP 01988647 A EP01988647 A EP 01988647A EP 01988647 A EP01988647 A EP 01988647A EP 1326738 A1 EP1326738 A1 EP 1326738A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- lighting device
- light source
- shaving
- lower knife
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
- B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
- B26B19/3806—Accessories
- B26B19/382—Built-in accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
- B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
- B26B19/46—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards providing for illuminating the area to be shaved or clipped
Definitions
- the invention relates to an electrically operated hair removal device according to the preamble of claim 1.
- Such a hair removal device is known from EP 0 069 468 A1.
- the electric dry shaver shown there has a housing and a translationally oscillating bottom knife, which is located under a shaving foil.
- An electrical lamp is arranged inside the housing in an area adjacent to the shaving head below the lower knife, which illuminates both the lower knife and the shaving foil and thus illuminates the skin area to be shaved.
- a disadvantage of this razor is that the electric light is significantly darkened both by the lower knife and by the shaving foil, which significantly reduces the lighting effect.
- a further embodiment of EP 0 069 468 A1 has an additional lighting arrangement outside the shaving head, which in turn is associated with additional effort.
- the invention is therefore based on the object of improving an electrically operated hair removal device of the type specified above in such a way that the best possible illumination of the actual work surface of the device is ensured with little construction effort.
- the solution according to the invention is characterized in that the required light is generated directly on the working surface of the device or is at least directly available there.
- This not only enables optimal illumination of the work surface, but also offers the possibility of displaying operationally relevant properties or information to the user by means of appropriate light signals, which can be generated, for example, by flashing, changing the brightness, changing the color and the like, without the user being affected Look away from the actual work surface.
- appropriate light signals can be generated, for example, by flashing, changing the brightness, changing the color and the like, without the user being affected Look away from the actual work surface.
- information about the contact pressure on the skin, the remaining battery capacity or the like can be displayed to the user by means of corresponding light signals.
- Such a visualization of system properties directly in the user's field of vision increases the ease of use and the utility value of such a device.
- An important condition for such a type of display is a particularly safe and complete transmission of the light signal into the user's field of vision.
- the lighting device is provided in at least one moving working element, in particular in a driven bottom knife or a driven epilation roller, as a result of which the dynamics of the user of the hair removal device can be shown particularly impressively.
- the lighting device has at least one light guide, it being advantageous if the lighting device consists of at least one light guide, which is arranged on a working element that can be moved relative to another working element and / or the housing, and at least a light source arranged on a housing section, the light rays of which couple into the light guide. If the coupling of the light rays of the light source takes place contactlessly via an air gap, the lighting of driven components can be realized in a simple manner.
- the light source can also be arranged directly in at least one of the working elements.
- the light source is advantageously formed by at least one light-emitting diode; especially since LEDs are particularly suitable for pulsating operation and for displaying different colors.
- a particularly good visualization of the mechanical work system with its work elements which are moved relative to one another can be achieved with little structural effort if the lighting device emits stroboscopically pulsed light signals.
- the system dynamics are ideal when the frequency of the light signals is in the range of approximately +/- 20% of the frequency of the movement of the working elements. ment lies. In this way, standing or very slowly moving images of a highly dynamic or high-frequency movement can be generated.
- the working system is a shaving system with a shaving foil and a lower knife movable relative to it, which is driven in a rotating or translatory manner, or it consists of two cutting combs movable relative to one another.
- the working system is an epilation system with tweezers that can be moved relative to one another.
- An ideal display option for possible wear of the work system is provided if the lighting device or at least part of it has defined, reproducible aging properties that are matched to the wear behavior of the device.
- 1 is a schematic diagram of a shaving head
- FIG. 1A is a side view of the lower knife of FIG. 1,
- 2A is a side view of a multiple shaving head with two lower knives
- FIG. 2B shows a front view of a multiple shaving head according to FIG. 2A
- FIG. 2C is a top view of a multiple shaving head according to FIG. 2A or 2B
- FIG. 3 shows a further embodiment of a shaving head
- FIG. 3A shows an embodiment of a light source
- Fig. 4 is an illustration of the course of movement of a driven lower knife
- FIG 5 shows the epilation head of an electrical epilation device.
- a section of a shaving head of an electric shaver is schematically outlined.
- this shaving head essentially consists of a shaving foil 1 with openings 2, which is stretched over a lower knife 3, which, as indicated by the arrow 4, is driven in a suitable manner in a translationally oscillating manner.
- the lower knife 3 is designed as a so-called blade block with a plurality of blades 5 arranged in parallel next to one another in a row.
- the knife block or the blades 5 rest against the shaving foil 1 under elastic pretension, so that hair threaded into the openings 2 is sheared between the edge of the hole in the corresponding opening 2 and the blade 5, the oscillation amplitude of which is greater than the extent of the openings 2 ,
- the blades 5 have approximately the contour of half a circular ring.
- a light source 7 which is fastened to the shaving head housing (not shown). Between the respective light source 7 and the light guide 6, a color filter 8 or 9 with a different color is arranged in order to be able to couple light beams with two different colors into the light guide 6.
- the light sources 7 are preferably designed as light-emitting diodes and (not shown in the drawing) are connected to a current source via a signal generator. When using LEDs in appropriate colors as light sources, the color filters can of course be omitted.
- the light coupled in via the end faces of the light guide 6 can now exit between the blades 5 and is visible from the outside through the openings 2 on the one hand for the user and on the other hand the skin area to be shaved can be illuminated.
- the light sources 7 in a suitable relation to the oscillation frequency of the lower knife stro- operated boscopically, ie switched on and off like a flash, the dynamics of the shaving system can be visualized very impressively.
- the stroboscopic effect allows the user to generate, for example, a standing image of the shaving system if the frequency of the light signals corresponds exactly to the oscillation frequency of the shaving system or to an integer multiple or an integer part of the oscillation frequency. If, on the other hand, the frequency of the light signals deviates from the oscillation frequency of the shaving system by a certain, not too large difference within a certain range of, for example, plus / minus 20% of the oscillation frequency, the user can obtain a pictorial representation of the lower knife which shows a slow sideways movement in one or the other direction of oscillation. By correspondingly varying the frequency of the light pulsation, it is therefore possible to display certain operating states or properties of the razor to the user.
- a display concept can provide that a standing image of the shaving system is always generated for the user when at least one system parameter, such as degree of contamination, battery or battery charge or the like, is not optimal.
- a standing image of the shaving system is always generated for the user when at least one system parameter, such as degree of contamination, battery or battery charge or the like, is not optimal.
- an image of the shaving system that is slowly moving in the direction of oscillation is displayed if the system parameter (s) are in an optimal or still classified state.
- the light source 7 is activated at a frequency which deviates from the oscillation frequency of the shaving system by a certain amount when the shaver is completely cleaned. With increasing contamination of the shaving system due to use, this deviation is successively reduced to zero. The user is then signaled by a standing image of the shaving system that he now has to carry out cleaning. This deviation can be controlled, for example, by a counting device known per se for the cutting events taking place.
- Information about the user can of course also be displayed by changing the color of the lighting.
- the light sources can be operated alternately with the different color filters or light-emitting diodes of the corresponding color; however, it is also possible to generate a color mixture by appropriate simultaneous control or to display a continuous color change over the entire length of the shaving head.
- the double shaving head shown in FIGS. 2A-2C has two lower knives 3 which are provided with a plurality of blades 5 and which, as already explained with reference to FIG. 1, are driven in an oscillating manner when pressed against a shaving foil (not shown). Between the two lower knives 3, a middle cutter for cutting longer and / or hair lying against the skin can additionally be arranged in a manner known per se, which is composed of two comb-like blades, of which one blade is driven to oscillate; a so-called triple shaving head would then be formed.
- light guides 6 are integrated, which extend over their entire length.
- a light guide fork 11 is arranged, which is attached to the shaving head housing 12.
- the ends 13 and 14 of this light guide fork 11 lie directly opposite the end face of a light guide 6, so that light can be coupled into the light guide via them.
- the third end 15 of the light guide fork 11 is designed in the form of a circular sector with a cross section widening downward and is located with its arcuate end opposite the end face of a further light guide 18.
- the shaving head housing 12 is mounted in the shaving head holder 17 so as to be pivotable about the axis 16.
- the light guide 18 is fastened in the razor housing 19 and projects upwards out of it into the shaving head housing 12.
- a light source 7 is arranged, the light rays of which couple directly into the light guide 18.
- the angle between the legs of the circular sector corresponds to the maximum pivoting angle of the shaving head housing 12 relative to the razor housing 19 or the shaving head holder 17.
- the circular sector-shaped design of the end 15 of the light guide fork 11 ensures that the shaving head housing 12 is in any pivoting position relative to the razor housing 19 light from the light source 7 or the light guide 18 can be coupled into the light guide fork 11.
- the light fed into the light guide fork 11 at the end 15 is divided at the branch 21 into two portions guided in opposite directions. These two partial luminous fluxes are then deflected again by 90 ° at the respective deflection points 22 and 23 and then exit at the ends 13 and 14 of the light guide fork 11.
- the light guide fork 11 By using the light guide fork 11, only one light source 7 is required to illuminate two lower knives 3.
- the light source 7 can also be arranged directly on the circuit board of the shaver, which saves an electrical line in the shaving head. This is particularly advantageous if the shaving head should be washable.
- the shaving head housing 12 and thus the shaving foil moves in an oscillating manner in opposition to the movement of the lower knife; i.e. the shaving head housing 12 can be pivoted about the axis 16 as well as driven in the longitudinal direction.
- the use of the light guide fork 11 advantageously offers the possibility that the light source 7 is not on a driven component, but on a stationary component, namely the printed circuit board.
- Fig. 3 shows a shaving head embodiment in which the light source 7 is arranged on a moving part of the shaving drive system.
- the shaving head comprises a shaving foil 1 which is held in an interchangeable frame 30 in a manner known per se, which in turn is attached to the shaving head housing 12.
- the lower knife (s) 3 receives the knife head carrier 31, which is connected to the housing section 33 via the swing bridge 32.
- the cutter head carrier 31 is provided on the side opposite the lower cutter 3 with a driving groove 34 which serves to receive a drive eccentric (not shown in the drawing), a drive crank or the like.
- an oscillation system which can be moved in an oscillating manner in the longitudinal direction of the lower knives 3 is formed.
- Electrical lines 37 and 38 run along the sections 35, 36 of the oscillating bridge 32 and connect the light source 7 to the electrical contact points 39, 40.
- the electrical lines 37 and 38 can be integrated into the material of the swing bridge;
- two metal swing bridge halves, which are electrically insulated from one another, are used, which then form the electrical lines themselves.
- the electrical contact points 39, 40 (not shown in the drawing) are connected to a current source via a signal generator.
- a light guide 41 which is connected to the lower knife (s) 3, and funnel-shaped from the light source 7 in the direction of the lower knife 3 down to approximately the entire lower knife length extended.
- the shaving head can thus be illuminated over its entire extent by a light source with a comparatively small dimension.
- FIG. 3A shows a light source which is formed by two light-emitting diodes 42, 43 connected in parallel.
- the use of such a light source enables illumination regardless of the direction of current flow; If a positive electrical voltage is applied to the connection 44, the LED 42 lights up, but if a positive electrical voltage is applied to the connection 45, the LED 43 is switched on.
- a light source according to FIG. 3A is used in a shaving head embodiment according to FIG. 3, the connections 44 and 45 being connected to the electrical lines 37 and 38, and if light-emitting diodes 42, 43 are used with different colors, then only two electrical ones can be used Realize power supplies to illuminate the shaving head with two different colors. As a result, the assembly effort is reduced in particular.
- FIG. 4 shows the course of movement of an oscillating driven lower knife 3 over 1.5 oscillation periods or 1.5 crank or eccentric revolutions.
- a certain angular position of the drive motor is assigned to each time t. If the lower knife 3 is flashed at the operating point 46 for the first time, the representation of a standing lower knife 3 can be generated when the next flash takes place at the operating point 47, that is after an oscillation period T. If, on the other hand, the next flash takes place at the operating point 48, that is to say after an oscillation period T + ⁇ t, a “traveling movement” of the driven lower knife 3 can be represented virtually. The speed of the "wandering" virtual image depends on the size of the ⁇ t.
- the lower knife 3 Due to the sinusoidal movement of the lower knife 3, by means of which it travels at least twice every revolution of its path of movement, it can also be flashed twice per revolution without an optically blurred representation of its movement. This applies to every angular position apart from the two extreme values which are only passed through once per revolution.
- the time interval between the additional flash and the regular flash depends on the phase position of the regular flash. In the middle position it is exactly 1 / 2T and decreases in the extreme positions to zero. If the lower knife 3 is to be shown moving (wandering), the phase position of the regular flash in relation to the current location of the lower knife 3 must change permanently and thus also the required time interval. An electronic controller can calculate this, however, if it knows a certain position of the lower knife 3 as a reference as a basis. An additional flash doubles the coupled light. The phase position of the flashes can also be used as a display. If an optically standing image of the lower knife 3 is to be generated, it can be flashed at the operating points 46, 49, 47
- the electronic controller can also control the (then variable) flash duration in such a way that a slightly longer light signal is generated at a lower speed of the oscillating driven lower knife 3, ie close to the reversal points, than at a higher speed.
- a high illumination output is achieved without the risk of the image blurring visually for the user.
- the synchronism with the current speed or speed of the cutting system can be achieved.
- FIG. 5 shows the plucking head 50 of an electrical epilation device, in which a rotating driven epilation cylinder 51 is mounted.
- a rotating driven epilation cylinder 51 On the circumference of the epilation cylinder 51, a plurality of pairs of tweezers 52 are arranged, which, during the rotation of the epilation cylinder, are operated and opened and closed by means known per se and not shown for the sake of clarity, in order to capture, pinch and pull out body hair when the epilation cylinder 51 is guided over a section of skin to be epilated.
- the epilation cylinder 51 has a plurality of light guide strips 53 distributed around the circumference, into which light can be fed by a light source, not shown in the drawing.
- the light source is operated by strobe flashing, so that with a suitable coordination between the flash frequency of the light source and the rotational frequency of the epilation cylinder 51, a virtually standing or very slowly moving image of the epilation cylinder, including the pairs of tweezers, can be displayed.
- the stroboscopic effect can indicate, for example, an end of the battery capacity in which the flashing frequency of the light source deviates by a certain amount at maximum battery capacity, while it gradually approaches the rotational frequency of the epilation cylinder as the battery capacity decreases, until it is reached a limit value of the capacity of the batteries corresponds to the flashing frequency of the rotational frequency and thus a virtually standing epilation cylinder 51 is shown.
- the image of a "standing" epilation cylinder that is virtually virtual for the user signals to him that he should soon replace or recharge the battery.
- the shaving head or the epilation cylinder By illuminating the shaving head or the epilation cylinder, not only the skin area to be shaved or epilated can be illuminated, but any deposited dirt particles, hair or accumulations of hair dust are clearly displayed to the user.
- the stroboscopic lighting of the shaving head or the epilation cylinder allows the user to demonstrate its operational capability in a simple and particularly clear manner at the beginning of each use of the device.
- the following process runs automatically each time the device is switched on: First, the light signals pulsate with the lowest permitted frequency; this frequency is now gradually increased to the highest permissible frequency. If an optically standing image of a shear element or of the epilation cylinder can be seen for the user during this process, the device is at least in order of speed.
- a so-called light collector that collects and bundles ambient light via a light-emitting surface that is small compared to the overall surface. This simplifies the construction effort and reduces energy consumption; on the other hand, this causes an automatic regulation of the illuminance of the hair removal device in comparison to the intensity of the ambient lighting.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dry Shavers And Clippers (AREA)
- Brushes (AREA)
- Massaging Devices (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10052127 | 2000-10-20 | ||
DE10052127A DE10052127A1 (de) | 2000-10-20 | 2000-10-20 | Elektrisch betriebenes Haarentfernungsgerät |
PCT/EP2001/011863 WO2002034481A1 (de) | 2000-10-20 | 2001-10-13 | Elektrisch betriebenes haarentfernungsgerät |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1326738A1 true EP1326738A1 (de) | 2003-07-16 |
EP1326738B1 EP1326738B1 (de) | 2004-10-06 |
Family
ID=7660509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01988647A Expired - Lifetime EP1326738B1 (de) | 2000-10-20 | 2001-10-13 | Elektrisch betriebenes haarentfernungsgerät |
Country Status (8)
Country | Link |
---|---|
US (1) | US6871402B2 (de) |
EP (1) | EP1326738B1 (de) |
JP (1) | JP2004512111A (de) |
CN (1) | CN1262401C (de) |
AT (1) | ATE278518T1 (de) |
AU (1) | AU2002221674A1 (de) |
DE (2) | DE10052127A1 (de) |
WO (1) | WO2002034481A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180207822A1 (en) * | 2017-01-26 | 2018-07-26 | Braun Gmbh | Shaver With Light Source |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10052296C1 (de) * | 2000-10-20 | 2002-04-04 | Braun Gmbh | Elektrisch betriebenes Haarentfernungsgerät mit einer Beleuchtungseinrichtung |
GB2383770A (en) * | 2002-01-05 | 2003-07-09 | Stephen Graham Rice | An electric shaver incorporating a light source |
US7654003B2 (en) * | 2003-02-19 | 2010-02-02 | The Gillette Company | Safety razors with charge indicator and power switch |
US20040194316A1 (en) * | 2003-04-04 | 2004-10-07 | Ray-Ming Lin | Shaver having germ-killing device |
DE102005044175A1 (de) * | 2005-09-16 | 2007-03-29 | Braun Gmbh | Haarentfernungsgerät |
DE102005045713A1 (de) | 2005-09-24 | 2007-03-29 | Braun Gmbh | Elektrisches Haarentfernungsgerät |
US20080250645A1 (en) * | 2005-10-06 | 2008-10-16 | Tringali Richard J | Hair Clipper with Light Source |
US8065802B2 (en) * | 2006-07-14 | 2011-11-29 | The Gillette Company | Shaving razor |
US20080072430A1 (en) * | 2006-09-22 | 2008-03-27 | Michael Cafaro | Electronic palm-held hair trimmer |
US8434238B2 (en) * | 2007-06-29 | 2013-05-07 | Andis Company | Hair dryer with light source |
JP4595968B2 (ja) * | 2007-07-12 | 2010-12-08 | パナソニック電工株式会社 | 往復式電気かみそりの内刃 |
KR101626167B1 (ko) * | 2008-01-17 | 2016-05-31 | 시네론 메디컬 리미티드 | 개인용 모발 제거 장치 및 그 사용 방법 |
US20100186234A1 (en) | 2009-01-28 | 2010-07-29 | Yehuda Binder | Electric shaver with imaging capability |
JP5388188B2 (ja) * | 2009-04-23 | 2014-01-15 | 株式会社泉精器製作所 | 往復式電気かみそり |
US20100295782A1 (en) | 2009-05-21 | 2010-11-25 | Yehuda Binder | System and method for control based on face ore hand gesture detection |
US11096465B2 (en) | 2013-06-28 | 2021-08-24 | Koninklijke Philips N.V. | Hair removal apparatus |
CN105666532A (zh) * | 2016-03-29 | 2016-06-15 | 浙江美森电器有限公司 | 带照明功能的剃毛器 |
JP6849809B2 (ja) | 2017-01-26 | 2021-03-31 | ブラウン ゲーエムベーハー | 光源を有するかみそり |
EP3450120B1 (de) * | 2017-08-30 | 2021-12-15 | Braun GmbH | Körperpflegevorrichtung |
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2000
- 2000-10-20 DE DE10052127A patent/DE10052127A1/de not_active Withdrawn
-
2001
- 2001-10-13 CN CNB018104339A patent/CN1262401C/zh not_active Expired - Fee Related
- 2001-10-13 DE DE50104037T patent/DE50104037D1/de not_active Expired - Fee Related
- 2001-10-13 AT AT01988647T patent/ATE278518T1/de not_active IP Right Cessation
- 2001-10-13 EP EP01988647A patent/EP1326738B1/de not_active Expired - Lifetime
- 2001-10-13 WO PCT/EP2001/011863 patent/WO2002034481A1/de active IP Right Grant
- 2001-10-13 AU AU2002221674A patent/AU2002221674A1/en not_active Abandoned
- 2001-10-13 US US10/311,044 patent/US6871402B2/en not_active Expired - Fee Related
- 2001-10-13 JP JP2002537506A patent/JP2004512111A/ja not_active Withdrawn
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180207822A1 (en) * | 2017-01-26 | 2018-07-26 | Braun Gmbh | Shaver With Light Source |
WO2018138663A1 (en) | 2017-01-26 | 2018-08-02 | Braun Gmbh | Shaver with light source |
US10717201B2 (en) * | 2017-01-26 | 2020-07-21 | Braun Gmbh | Shaver with light source |
Also Published As
Publication number | Publication date |
---|---|
WO2002034481A1 (de) | 2002-05-02 |
AU2002221674A1 (en) | 2002-05-06 |
CN1438934A (zh) | 2003-08-27 |
US6871402B2 (en) | 2005-03-29 |
CN1262401C (zh) | 2006-07-05 |
ATE278518T1 (de) | 2004-10-15 |
DE50104037D1 (de) | 2004-11-11 |
DE10052127A1 (de) | 2002-05-29 |
EP1326738B1 (de) | 2004-10-06 |
US20030167638A1 (en) | 2003-09-11 |
JP2004512111A (ja) | 2004-04-22 |
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