EP0413168B1 - Nassrasierapparat - Google Patents

Nassrasierapparat Download PDF

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Publication number
EP0413168B1
EP0413168B1 EP90114026A EP90114026A EP0413168B1 EP 0413168 B1 EP0413168 B1 EP 0413168B1 EP 90114026 A EP90114026 A EP 90114026A EP 90114026 A EP90114026 A EP 90114026A EP 0413168 B1 EP0413168 B1 EP 0413168B1
Authority
EP
European Patent Office
Prior art keywords
handle
housing
razor
wet
vibration
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
EP90114026A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0413168A1 (de
Inventor
Wolfgang Althaus
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.)
Wilkinson Sword GmbH
Original Assignee
Wilkinson Sword 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 Wilkinson Sword GmbH filed Critical Wilkinson Sword GmbH
Priority to AT9090114026T priority Critical patent/ATE104583T1/de
Publication of EP0413168A1 publication Critical patent/EP0413168A1/de
Application granted granted Critical
Publication of EP0413168B1 publication Critical patent/EP0413168B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B26B19/28—Drive layout for hair clippers or dry shavers, e.g. providing for electromotive drive
    • B26B19/288—Balance by opposing oscillation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/08—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving changeable blades
    • B26B21/14—Safety razors with one or more blades arranged transversely to the handle
    • B26B21/38—Safety razors with one or more blades arranged transversely to the handle with provision for reciprocating the blade by means other than rollers

Definitions

  • the invention relates to a wet shaver with a handle, at the front end of which a razor blade unit is arranged on a razor head, a motor-operated vibration device being arranged in a housing of the handle, which together with the razor blade unit in a controlled, directed vibration movement, with the razor blade unit being largely avoided Vibrations of the handle offset.
  • Wet shavers of the type mentioned are known. They consist of a handle, at the front end of which a razor blade unit is arranged on a razor head, a razor blade unit being understood to mean a plastic body in which a single or double razor blade is embedded in a non-detachable manner.
  • a vibration device is provided in the handle housing, which is driven by a battery-operated electric motor. The vibration device sets the razor head together with the razor blade unit arranged thereon in vibration during the shave if necessary.
  • a disadvantage of these known wet shavers is that the vibration properties are not optimal. Thus, the handle is vibrated in a disturbing manner, so that, moreover, the vibration energy is not completely transmitted to the razor blade unit. In addition, the Vibration transmission is damped by the design of the plastic handle, which also worsens the vibration effect. Furthermore, only a single vibration frequency can be set with the known wet shavers, which is always a compromise. The vibration frequency is always too high for weak beard growth or for more sensitive areas, such as the neck area, while it is too low for shaving with stronger beard growth or for areas with dense beard growth. Another disadvantage of the known wet shavers is the split handle housing made of plastic, the housing parts being ultrasonically welded during assembly.
  • a generic wet shaver is known, on the handle of which a razor head with a razor blade unit is arranged at the front end, wherein the razor blade unit can be set in a controlled, directed vibration movement in the longitudinal direction of the cutting edges of the razor blades.
  • the razor head with the razor blade unit is arranged via an elastic sleeve at the front end of the handle in such a way that the razor head can carry out vibratory movements with respect to the handle.
  • a motor is arranged within the handle, the axis of rotation of which via a clutch eccentrically arranged cam drives, which in turn sets a pivotable lever in the razor head in such an oscillating motion that the razor head vibrates accordingly.
  • the object of the invention is to further develop the known wet shaver in such a way that, while increasing the stability of the wet shaver, in particular in the area of the shaver head, the overall construction for generating the vibration movements is simplified and the vibration properties are improved.
  • a wet shaver designed according to this technical teaching is characterized by its constructive simplicity and by its stability in the area of the shaver head.
  • the structural simplicity is achieved in that the razor head with the razor blade unit arranged thereon forms a rigid unit with the vibration device arranged inside the handle, in the manner of a rod, which is pivotably mounted in the exit region from the handle.
  • Such an assembly is very easy to assemble in the handle of the wet shaver.
  • the shaver head forms a rigid unit with the actual vibration device, the stability is correspondingly high.
  • the housing of the handle preferably has an opening with a rectangular cross-sectional profile at the front end, and the connection of the support for the vibration device to the shaver head is formed by a cuboid body which is pivotably mounted in the opening.
  • the vibration device is preferably arranged in a vibrator housing, which is accommodated for the vibration movements with play within the housing of the handle.
  • This vibrator housing thus forms the carrier for the vibration device, the vibrator housing being able to accommodate all the parts which are necessary for generating the vibrations.
  • the housing of the handle consists predominantly of metal.
  • a handle housing made of metal has the advantage that the transmission of vibrations is less damped than, for example, with a plastic version of the handle housing.
  • a metal handle housing leads to a significantly lower housing vibration than is the case, for example, with a plastic housing.
  • the housing of the handle is made in one piece.
  • the handle housing is preferably made of metal, but can also consist of plastic.
  • the one-piece housing design has the advantage that the vibration is transferred to the razor head with the razor blade unit in an optimal manner. In contrast to the conventional split handle housing, no vibrations can be loosened by the vibrations, so that the vibration characteristics are not changed and thus a constant functionality is achieved. Also, in the one-piece handle housing there is no danger that water can penetrate into the interior of the apparatus, for example due to loosened or incorrectly executed welded connections, so that the one-piece design prevents destruction of the functional parts.
  • the housing of the handle has an elastic, vibration-damping coating on the outside.
  • This is preferably made of rubber, in particular synthetic rubber. In addition to a significantly reduced vibration in the grip area, this also results in better haptics.
  • a further development suggests that a switch for operating the vibration device with different, in particular with two different frequencies is arranged on the handle.
  • the user thus has the option at two speeds with two different frequencies to select the lower frequency in the case of weak beard growth or for more sensitive zones, such as the neck area.
  • the higher frequency is used for stronger beard growth or for areas with dense beard growth.
  • the vibration device In a preferred development of the vibration device, it consists of two synchronously opposing eccentrics, the common center of gravity of which moves back and forth parallel to the longitudinal extent of the razor blade unit. In this way, a controlled, aligned vibration movement is created in only one direction, namely parallel to the cutting edge of the razor blade embedded in the razor blade unit. As a result, no disturbing transverse vibrations occur. At least these are reduced to a tolerable level.
  • the synchronously counter-rotating eccentrics are formed by two gearwheels which engage with one another with the same number of teeth and are each provided with an unbalance, one gearwheel on the rotating motor shaft of the motor and the other gearwheel in the carrier the vibration device are stored.
  • the motor shaft of the motor is preferably located in the longitudinal central axis of the housing of the handle. Instead, however, it is also conceivable to arrange the motor shaft itself eccentrically, so that the second gear wheel can then lie exactly in the longitudinal central axis of the housing of the handle.
  • the wet shaver consists of a handle 1. This is formed by an essentially hollow cylindrical housing 2 made of metal, the rear open end of which is closed by a cover 3. This is connected to the housing 2 by means of a snap device.
  • the front end of the housing 2 has an opening 4 with a rectangular cross-sectional profile.
  • a vibration device 5 is arranged within the housing 2 of the handle 1.
  • This first consists of a vibrator housing 6, which is also essentially a hollow cylinder is formed, the outer diameter of this vibrator housing 6 is slightly smaller than the inner diameter of the housing 2 for the handle 1, so that the vibrator housing 6 has some play to the housing 2.
  • the back of the vibrator housing 6 is also closed by a cover 7.
  • a cuboid body 8 is attached, for example glued.
  • a razor head 10 is fastened outside the housing 2 for the handle 1 and carries a so-called razor blade unit 11 at its front end, in which a razor blade 13 in the form of a double razor blade is embedded in a plastic body 12.
  • the vibrator housing 6 with the cover 7, the body 8, the cuboid body 9 and finally the razor head 10 with the razor blade unit 11 thus form a structural unit.
  • This is pivotally mounted within the housing 2 for the handle 1, the pivot point being defined by the cuboid body 9 within the opening 4.
  • the pivoting movement being made possible by the play between the vibrator housing 6 and the housing 2 for the handle 1.
  • the actual vibration device 5 consists of a motor 14 in the form of an electric motor, which is fixedly arranged in the rear area of the vibrator housing 6.
  • the electrical supply of this motor 5 takes place by means of a battery 15 via electrical lines 16.
  • the battery 15 is inserted from behind into the housing 2 for the handle 1, the securing being carried out by the cover 3 attached.
  • a spring 17 is supported between the back of the battery 15 and the inside of the cover 3.
  • a first gear wheel 19 is arranged on the motor shaft 18 of the motor 14, which for the rest lies in the longitudinal central axis of the handle 1. With its pinion, this has a certain number of teeth 20. But above all, this gear 19 has an imbalance 21.
  • the gear 19 meshes with a second gear 19 ', which is mounted with its shaft 22 in the vibrator housing 6 freely rotatable.
  • This second gear 19 ' has a corresponding number of teeth 20' as in the first gear 19.
  • the second gear 19 ' has an unbalance 21'.
  • the housing 2 for the handle 1 has a coating 23 made of soft, vibration-damping synthetic rubber in the grip area.
  • the wet shaver with its vibrating device 5 works as follows:
  • the motor 14 is switched on, so that the motor shaft 18 is rotated at a certain speed and thus with a certain rotational frequency.
  • the fixedly arranged on the motor shaft 18 gear 19 rotates accordingly and drives the gear 19 'in a synchronous manner in opposite directions.
  • the arrangement of the two unbalances 21,21 'in the gears 19,19' is such that the common center of gravity of the two gears 19,19 'is always in a fixed plane which runs parallel to the cutting edges of the two razor blades 13. In the drawing, this is the paper level. In this way, the common center of gravity of the two gears 19, 19 'always moves back and forth in the paper plane.
  • the razor head 10 with its razor blade unit 11 is set into a vibration movement running in the paper plane. Transversely perpendicular movements (i.e. perpendicular to the paper plane) do not occur.
  • two speeds of the motor 14 can be set. This leads to two different speeds and thus to two different vibration frequencies.
  • the lower frequency is chosen for weak beard growth or for sensitive areas, such as the neck area, while the higher frequency is used for stronger beard growth or for areas with dense beard growth.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
  • Filtering Materials (AREA)
EP90114026A 1989-08-17 1990-07-21 Nassrasierapparat Expired - Lifetime EP0413168B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT9090114026T ATE104583T1 (de) 1989-08-17 1990-07-21 Nassrasierapparat.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8909835U 1989-08-17
DE8909835U DE8909835U1 (es) 1989-08-17 1989-08-17

Publications (2)

Publication Number Publication Date
EP0413168A1 EP0413168A1 (de) 1991-02-20
EP0413168B1 true EP0413168B1 (de) 1994-04-20

Family

ID=6842038

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90114026A Expired - Lifetime EP0413168B1 (de) 1989-08-17 1990-07-21 Nassrasierapparat

Country Status (5)

Country Link
US (1) US5214851A (es)
EP (1) EP0413168B1 (es)
AT (1) ATE104583T1 (es)
DE (2) DE8909835U1 (es)
ES (1) ES2055237T3 (es)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5441512A (en) * 1982-09-24 1995-08-15 Muller; George H. High incision velocity vibrating scalpel structure and method
JP2736023B2 (ja) * 1994-12-27 1998-04-02 ユニデン株式会社 バイブレータ取付構造、バイブレータ取付用保持具、および、バイブレータ取付方法
US5732470A (en) * 1996-02-08 1998-03-31 Good Marketing, Inc. Oscillating razor
US6105252A (en) * 1998-10-26 2000-08-22 Andis Company Razor assembly including detachable and vibratable head
JP2003318124A (ja) * 2002-04-23 2003-11-07 Nec Electronics Corp トランジスタ特性の補正方法およびトランジスタの製造方法
US7654003B2 (en) * 2003-02-19 2010-02-02 The Gillette Company Safety razors with charge indicator and power switch
GB0303872D0 (en) * 2003-02-19 2003-03-26 Gillette Co Hand held appliances
GB2398534B (en) * 2003-02-19 2005-11-16 Gillette Co Safety razors
US7028405B2 (en) * 2003-03-04 2006-04-18 S.C. Johnson & Son, Inc. Vibratory shaver
EP1619003B1 (en) * 2003-04-25 2012-10-10 Daido Kogyo Co., Ltd. Vibration-type paper-cutting device
EP1563967A1 (de) * 2004-02-11 2005-08-17 Eveready Battery Company, Inc. Rasierer und Verfahren zur Herstellung eines Rasierers
US7536787B2 (en) * 2004-03-30 2009-05-26 Ridgewood Industries Llc Wet razor and electric trimmer assembly
US8615886B1 (en) 2004-05-06 2013-12-31 Winthrop D. Childers Shaving system with energy imparting device
WO2006027017A1 (en) * 2004-09-07 2006-03-16 Bic-Violex Sa Vibrating wet shaver
WO2006037358A1 (en) * 2004-10-04 2006-04-13 Bic-Violex Sa Vibrating wet shaver
US20090119924A1 (en) * 2005-09-06 2009-05-14 Ioannis Bozikis Vibrating wet shaver
US20070050995A1 (en) * 2005-09-06 2007-03-08 Fred Schnak Razors
US8061041B2 (en) * 2007-02-14 2011-11-22 The Gillette Company Safety razor
RU2508981C2 (ru) * 2009-03-03 2014-03-10 Дзе Жиллетт Компани Комбинированное устройство для гигиенического ухода с электрическим приводом
EP2236054A1 (en) * 2009-04-04 2010-10-06 Braun GmbH Body grooming device
US20100313425A1 (en) * 2009-06-11 2010-12-16 Christopher Martin Hawes Variable amplitude vibrating personal care device
US20110214289A1 (en) * 2010-03-03 2011-09-08 Michael Maichel Combination powered grooming device
US20120110855A1 (en) * 2010-10-19 2012-05-10 Mr. Keith Allen, SR. Hair trimmer
US8683701B1 (en) * 2012-02-10 2014-04-01 Jonathan L. Loftin Vibrating razor handle assembly
US11831215B2 (en) * 2021-05-06 2023-11-28 Aac Microtech (Changzhou) Co., Ltd. Linear vibration motor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2319815A (en) * 1939-08-26 1943-05-25 Russell P Harshberger Razor
US3157804A (en) * 1961-09-12 1964-11-17 Goodwin Mfg & Dev Company Inc Razor motor and casing therefor
US3636627A (en) * 1969-08-11 1972-01-25 Victor Tiffin Razor with oscillating head
US4642892A (en) * 1983-12-19 1987-02-17 Feather Safety Razor Co., Ltd. T-shaped razor
US4819330A (en) * 1987-10-05 1989-04-11 Fenn Lawrence E Live-action blade shaver
US5007169A (en) * 1989-12-11 1991-04-16 Warner-Lambert Company Vibrating razor

Also Published As

Publication number Publication date
ATE104583T1 (de) 1994-05-15
US5214851A (en) 1993-06-01
EP0413168A1 (de) 1991-02-20
DE59005419D1 (de) 1994-05-26
DE8909835U1 (es) 1990-12-20
ES2055237T3 (es) 1994-08-16

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