JPH0252692A - Small domestic vibrator - Google Patents
Small domestic vibratorInfo
- Publication number
- JPH0252692A JPH0252692A JP16406789A JP16406789A JPH0252692A JP H0252692 A JPH0252692 A JP H0252692A JP 16406789 A JP16406789 A JP 16406789A JP 16406789 A JP16406789 A JP 16406789A JP H0252692 A JPH0252692 A JP H0252692A
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- cutter
- stator
- coil
- energized
- 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.)
- Pending
Links
- 238000005192 partition Methods 0.000 claims description 5
- 230000003534 oscillatory effect Effects 0.000 claims description 2
- 238000010008 shearing Methods 0.000 claims 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002775 capsule Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- B26B19/282—Motors without a rotating central drive shaft, e.g. linear motors
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
本発明は、電気駆動系によって長手方向に可動自在で、
且つ固定剪断プレートに接触して振動するカッターを具
えており、前記剪断プレートには毛が入る孔が形成され
ており、前記駆動系がコイルによって２極永久磁石を動
かすべく附勢し得る固定子回路を具え、前記永久磁石の
運動を前記カッターに伝達して体毛をそるための家庭用
小形振動装置、特に乾式ひげそり器に関するものである
。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention is directed to a movable motor which is longitudinally movable by an electric drive system.
and a stator having a cutter vibrating in contact with a fixed shear plate, the shear plate having holes formed therein for receiving the bristles, and a stator in which the drive system can be energized by a coil to move a two-pole permanent magnet. The present invention relates to a small vibrating device for home use, which includes a circuit, and transmits the motion of the permanent magnet to the cutter to shave body hair, and particularly relates to a dry shaver.
斯種の家庭用振動装置は西独国特許公開公報第２０３２
５２０号から既知である。駆動系はＵ字状の固定子鉄心
を有している固定子及び固定子鉄心のリムに取付けられ
るコイルを具えている。固定子極間に回転用に取付ける
回転子は２極の永久磁石と、固定子鉄心と共働する回転
子鉄心とを具えている。This type of household vibration device is disclosed in West German Patent Publication No. 2032.
It is known from No. 520. The drive system includes a stator having a U-shaped stator core and a coil attached to the rim of the stator core. A rotor mounted for rotation between stator poles has two permanent magnets and a rotor core that cooperates with the stator core.
回転子は２つのアームレバーの内の第１アームと共働す
る偏心ピンも具えている。２つのアームレバーの内の第
２アームは直線的に可動自在のカッターに作用する。こ
のような構成は複雑であり、又非常に細長い形状となる
。The rotor also includes an eccentric pin that cooperates with the first of the two arm levers. The second arm of the two arm levers acts on a linearly movable cutter. Such a configuration is complex and results in a very elongated shape.
本発明の目的は回転振動をする駆動系を用いることなく
カッターを直線運動させる冒頭にて述べた種類の家庭用
振動装置を提供することにある。The object of the invention is to provide a domestic vibrator of the type mentioned at the outset, which allows a cutter to move linearly without the use of a rotary vibrating drive system.
本発明は冒頭にて述べた家庭用振動装置において、前記
永久磁石をカッターの移動方向に往復動させることので
きるように、該磁石の両端部に作用を及ぼす固定子極間
に支持し、前記固定子コイルが附勢されない時には永久
磁石がばね力によって固定子磁界の空間内における休止
位置に位置付けられ、前記固定子コイルが附勢される時
には前記永久磁石が前記休止位置に対して振動性の運動
をするようにしたことを特徴とする。The present invention provides the household vibration device described at the beginning, in which the permanent magnet is supported between stator poles that act on both ends of the magnet so that the permanent magnet can be reciprocated in the direction of movement of the cutter. When the stator coil is not energized, the permanent magnet is positioned by the spring force in a rest position in the space of the stator magnetic field, and when the stator coil is energized, the permanent magnet is oscillated relative to the rest position. It is characterized by being made to exercise.
永久磁石を長手方向に可動自在とすることによって装置
の高さを低くすることができる。このことは特に旅行か
ばんに入れて持運ぶ小形器具にとって有利である。By making the permanent magnet freely movable in the longitudinal direction, the height of the device can be reduced. This is particularly advantageous for small appliances that are carried in luggage.
本発明の好適例では前記永久磁石を該磁石の移動方向に
て前記カッターに堅牢に結合させる。このような堅牢な
結合は、本発明の他の好適例により、永久磁石をカッタ
ーの下側に直接取付けると共に、前記永久磁石と固定子
極との間に仕切板を配置する場合に極めて有利であるこ
とが判明する。In a preferred embodiment of the invention, the permanent magnet is rigidly coupled to the cutter in the direction of movement of the magnet. Such a robust connection is extremely advantageous when, according to another embodiment of the invention, the permanent magnets are mounted directly on the underside of the cutter and a partition plate is arranged between said permanent magnets and the stator poles. Something turns out to be true.
この場合の装置の構成は長さが極めて短（なる。The configuration of the device in this case is extremely short.
本発明のさらに他の好適例では、前記ばね力が前記永久
磁石か、又は該永久磁石と前記カッターにそれぞれ逆方
向に作用して、前記固定子コイルが附勢されない時に前
記永久磁石を休止位置に持たらし、且つ前記固定子コイ
ルが附勢される時には前記永久磁石がその休止位置から
カッターの移動方向に直線的な振動性運動をするように
する。In yet another preferred embodiment of the invention, the spring force acts on the permanent magnet or on the permanent magnet and the cutter, respectively, in opposite directions to move the permanent magnet into a rest position when the stator coil is not energized. and when the stator coil is energized, the permanent magnet undergoes a linear oscillatory movement from its rest position in the direction of cutter movement.
本発明の他の好適例では、前記固定子極が前記軸方向に
磁化した永久磁石の移動方向に対して垂直の方向に延在
し、これらの固定子極が前記永久磁石の軸方向磁極端面
に対向するようにする。さらに他の好適例では、前記固
定子極が前記軸方向に磁化した永久磁石の移動方向に対
して平行に延在し、且つこれらの固定子極が前記永久磁
石に隣接すると共に該磁石から離間して配置されるよう
にする。In another preferred embodiment of the invention, the stator poles extend in a direction perpendicular to the direction of movement of the axially magnetized permanent magnets, and these stator poles are arranged in contact with the axial pole end faces of the permanent magnets. so that they are facing each other. In yet another preferred embodiment, the stator poles extend parallel to the direction of movement of the axially magnetized permanent magnet, and these stator poles are adjacent to and spaced apart from the permanent magnet. so that it is placed.
本発明の他の好適例では、前記コイルを周波数が幹線周
波数（５０Ｈｚ、 ６０１１ｚ ）に等しくない電流で
附勢する。In another preferred embodiment of the invention, the coil is energized with a current whose frequency is not equal to the mains frequency (50Hz, 6011z).
さらに他の好適例では前記コイルを電流パルスで附勢す
る。パルス附勢は、特に装置をバッテリで作動させる場
合に極めて好適である。In yet another preferred embodiment, the coil is energized with a current pulse. Pulse energization is highly preferred, especially when the device is battery operated.
さらに本発明の好適例では前記コイルを単極性の電流パ
ルスで附勢する。このようにすれば、回路素子の個数を
減らすことができる。Furthermore, in a preferred embodiment of the invention, the coil is energized with unipolar current pulses. In this way, the number of circuit elements can be reduced.
本発明の他の好適例では前記コイルを全波整流交流電圧
で附勢する。全波整流交流電圧は交流作動の場合に回転
子の振動周波数を節単に２倍とすることができる。In another preferred embodiment of the invention, the coil is energized with a full-wave rectified alternating current voltage. A full-wave rectified alternating current voltage can easily double the vibration frequency of the rotor in the case of alternating current operation.
以下実施例につき図面を参照して説明するに、第１図は
特に電気ひげそり器として好適な小形の家庭用電気器具
を示す。ハウジング１内に配置する取付はプレート３に
単相同期モータ４を支承させる。この単相同期モータ４
はリム５ａと５ｂとを有しているＵ字状の固定子鉄心５
を具えている。棒状永久磁石３５は、それが移動する軸
方向（矢印３５ａ）に磁化し、この永久磁石３５を固定
子５の案内手段３６内に長手方向に動けるように配置す
る。永久磁石３５は軸方向磁極端面３５ｂを有している
。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will now be described with reference to the drawings. FIG. 1 shows a small household appliance particularly suitable as an electric shaver. The mounting arranged in the housing 1 allows the plate 3 to support a single-phase synchronous motor 4. This single phase synchronous motor 4
is a U-shaped stator core 5 having rims 5a and 5b.
It is equipped with A bar-shaped permanent magnet 35 is magnetized in the axial direction of its movement (arrow 35a) and is arranged so as to be movable in the longitudinal direction within the guide means 36 of the stator 5. The permanent magnet 35 has an axial magnetic pole end face 35b.
固定子ぢはリム５ａ、 ５ｂの外部３７の方へと狭くな
っている固定子極７′を有しており、これらの固定子極
７′は永久磁石３５の軸方向磁極端面３５ｂに対向する
平行な磁極面３８を具えている。機械的な案内手段を形
成するために、固定子極７′にはそれらの遊端に非導磁
性の低摩擦案内部材３９を設ける。又同じ目的のために
、固定子リム５ａ、 ５ｂと固定子極７′との間の遷移
部分に樹状の素子３９ａを配置する。このようにして形
成した案内手段３６の内部に棒状永久磁石３５を配置す
る。なお、磁石３５にはプラス千ンクのカプセル封入体
４０を設けるのが好適である。The stator has stator poles 7' narrowing towards the exterior 37 of the rims 5a, 5b, these stator poles 7' facing the axial pole end faces 35b of the permanent magnets 35. It has parallel magnetic pole faces 38. To form mechanical guiding means, the stator poles 7' are provided with magnetically non-conductive, low-friction guiding elements 39 at their free ends. Also for the same purpose, a dendritic element 39a is arranged at the transition between the stator rims 5a, 5b and the stator poles 7'. A rod-shaped permanent magnet 35 is placed inside the guide means 36 formed in this way. Incidentally, it is preferable that the magnet 35 is provided with a plus-thousand encapsulation body 40.
棒状永久磁石３５は圧縮ばね２３′によって休止位置に
保持され、ばね２３′は衝合部材３３′間に配置すると
共に封入体４０の一部分４１に成形する。永久磁石３５
は矢印３５ａで示す軸方向に磁化するために、この磁石
は固定子極７′の方へと磁気的に動こうとする。これが
ため、圧縮ばね２３′は棒状永久磁石３５を中央の休止
位置に維持するために強目のものとする必要がある。The rod-shaped permanent magnet 35 is held in the rest position by a compression spring 23', which is disposed between the abutment members 33' and molded into a part 41 of the enclosure 40. Permanent magnet 35
magnetizes in the axial direction indicated by arrow 35a, this magnet tends to move magnetically towards stator pole 7'. Therefore, the compression spring 23' must be strong in order to maintain the rod-shaped permanent magnet 35 in the central rest position.
棒状永久磁石の封入体４０にはレバー１２ａを設け、こ
のレバーの遊端１５に設けた駆動部１４を乾式ひげそり
器のカンタ−２０の結合部材１９に係合させる。The enclosure 40 of the rod-shaped permanent magnet is provided with a lever 12a, the drive part 14 of which is provided at the free end 15 of this lever, engages with the coupling member 19 of the canter 20 of the dry shaver.
カッター２０は固定の剪断プレート２０ａの下側を動く
ことができる。カッター２０を、これが二重矢印２２に
よって示す方向に往復動し得るように支持体２１により
支持する。The cutter 20 can move under a fixed shear plate 20a. The cutter 20 is supported by a support 21 so that it can reciprocate in the direction indicated by the double arrow 22.
第２図は第１図に示した装置の構成を簡単にした例を示
す。この場合には、Ｕ字状固定子鉄心５の固定子極７＃
を一平面内にて相並べて配置させると共に、これらの固
定子極７″を永久磁石の移動方向に互いに離間させ、又
固定子極７″にはハウジングの仕切板４２をかぶせる。FIG. 2 shows an example in which the configuration of the device shown in FIG. 1 is simplified. In this case, stator pole 7# of U-shaped stator core 5
are arranged side by side in one plane, and these stator poles 7'' are spaced apart from each other in the direction of movement of the permanent magnets, and the stator poles 7'' are covered with a partition plate 42 of the housing.
棒状永久磁石３５はカッター２０の下側に支承させる。The rod-shaped permanent magnet 35 is supported under the cutter 20.
圧縮ばね２３′の機能はカッター２０に使用するひげそ
りヘッドの圧縮ばね２３″によって引き継がれる。第２
図に示す装置の作動は第１図に示した装置の作動に相当
する。いずれの例の場合でも、固定子極７′、７″は永
久磁石３５の軸方向端部に影響を及ぼす。第１図の例で
は、この作用が軸方向にて得られるが、第２図の例では
斯かる作用は仕切板４２の側から得られる。The function of the compression spring 23' is taken over by the compression spring 23'' of the shaving head used for the cutter 20.
The operation of the device shown in the figures corresponds to that of the device shown in FIG. In both examples, the stator poles 7', 7'' influence the axial ends of the permanent magnets 35. In the example of FIG. 1, this effect is obtained in the axial direction, whereas in the example of FIG. In this example, such an effect is obtained from the partition plate 42 side.
カッターの振動周波数はモータを附勢する周波数によっ
て規定される。モータの制御は第３図に示す全波整流回
路によって行なうことができる。The vibration frequency of the cutter is determined by the frequency at which the motor is energized. The motor can be controlled by a full wave rectifier circuit shown in FIG.
周波数が５０Ｈｚ又は６０ ｔｌ ｚの交流幹線電圧を
端子１１０に供給する。全波整流器１１１は交流幹線電
圧を整流して幹線周波数の２倍、即ち１００ Ｈｚ又は
１２０ ｆｉｚの直流電圧１１２を形成し、この電圧を
固定子コイル６に供給する。このようにして振動周波数
を２倍にする。An alternating mains voltage with a frequency of 50 Hz or 60 tl z is supplied to terminal 110 . The full-wave rectifier 111 rectifies the AC mains voltage to form a DC voltage 112 of twice the mains frequency, ie 100 Hz or 120 fiz, and supplies this voltage to the stator coil 6. In this way, the vibration frequency is doubled.
第１図は長手方向に可動自在の永久磁石駆動部材を具え
ている乾式ひげそり器の駆動系の固定子構造を示す側面
図；
第２図は第１図に示すひげそり器の固定子構造の変形例
を示す側面図；
第３図は簡単な周波数二倍化回路の一例を示す回路図で
ある。
１・・・ハウジング
２・・・取付はプレート
４・・・単相同期モータ
５ａ、 ５ｂ・・・リム
５・・・固定子鉄心
６・・・固定子コイル
７′、７″・・・固定子極
１２ａ ・・・レバー
１４・・・駆動部
１５・・・レバー遊端
１９・・・結合部材
２０ａ・・・剪断プレート
２０・・・カッター
２１・・・支持体
２３’ 、 ２３“・・・圧縮ばね
３５・・・棒状永久磁石
３６・・・固定子案内手段
３８・・・磁極面
３つ・・・案内ｏＢ材
４０・・・カプセル封入体
４２・・・仕切板
１１１・・・全波整流器Fig. 1 is a side view showing the stator structure of the drive system of a dry shaver that includes a permanent magnet drive member that is movable in the longitudinal direction; Fig. 2 is a modification of the stator structure of the shaver shown in Fig. 1. Side view showing an example; FIG. 3 is a circuit diagram showing an example of a simple frequency doubling circuit. 1...Housing 2...Mounted on plate 4...Single-phase synchronous motor 5a, 5b...Rim 5...Stator core 6...Stator coil 7', 7''...Fixed Child pole 12a...Lever 14...Driver 15...Lever free end 19...Coupling member 20a...Shear plate 20...Cutter 21...Support bodies 23', 23"...・Compression spring 35... Rod-shaped permanent magnet 36... Stator guide means 38... Three magnetic pole faces... Guide OB material 40... Capsule enclosure 42... Partition plate 111... All wave rectifier
Claims (1)
定剪断プレート（２０ａ）に接触して振動するカッター
（２０）を具えており、前記剪断プレート（２０ａ）に
は毛が入る孔が形成されており、前記駆動系がコイル（
６）によって２極永久磁石（３５）を動かすべく附勢し
得る固定子回路を具え、前記永久磁石の運動を前記カッ
ター（２０）に伝達して体毛をそるための家庭用小形振
動装置、特に乾式ひげそり器において、−前記永久磁石
（３５）をカッター（２０）の移動方向に往復動させる
ことのできるように、該磁石の両端部に作用を及ぼす固
定子極（７′、７″）間に支持し、 −前記固定子コイル（６）が附勢されない時には永久磁
石（３５）がばね力によって固定子磁界の空間内におけ
る休止位置に位置付けられ、前記固定子コイル（６）が
附勢される時には前記永久磁石が前記休止位置に対して
振動性の連動をするようにしたことを特徴とする家庭用
小形振動装置。 ２、前記永久磁石（３５）を該磁石の移動方向にて前記
カッター（２０）に堅牢に結合させたことを特徴とする
請求項１に記載の装置。 ３、前記永久磁石（３５）を前記カッター（２０）の下
側に直接取付け、且つ前記永久磁石と前記固定子極との
間に仕切板（４２）を配置したことを特徴とする請求項
１に記載の装置。 ４、前記ばね力が前記永久磁石（３５）か、又は該永久
磁石と前記カッターにそれぞれ逆方向に作用して、前記
固定子コイル（６）が附勢されない時に前記永久磁石（
３５）を休止位置に持たらし、且つ前記固定子コイルが
附勢される時には前記永久磁石がその休止位置からカッ
ターの移動方向に直線的な振動性運動をするようにした
ことを特徴とする請求項１又は２のいずれかに記載の装
置。 ５、前記固定子極（７′）が前記軸方向に磁化した永久
磁石（３５）の移動方向に対して垂直の方向に延在し、
これらの固定子極（７′）が前記永久磁石の軸方向磁極
端面（３５ｂ）に対向するようにしたことを特徴とする
請求項１に記載の装置。 ６、前記固定子極（７″）が前記軸方向に磁化した永久
磁石（３５）の移動方向に対して平行に延在し、且つこ
れらの固定子極が前記永久磁石に隣接すると共に該磁石
から離間して配置されるようにしたことを特徴とする請
求項１に記載の装置。 ７、前記コイル（６）を周波数が幹線周波数（５０Ｈｚ
、６０Ｈｚ）に等しくない電流で附勢するようにしたこ
とを特徴とする請求項１〜４のいずれかに記載の装置。 ８、前記コイルを電流パルスで附勢するようにしたこと
を特徴とする請求項７に記載の装置。 ９、前記コイル（６）を単極性の電流パルスで附勢する
ようにしたことを特徴とする請求項８に記載の装置。 １０、前記電流パルスをブラシ及びワイパパルス源によ
って供給するようにしたことを特徴とする請求項７に記
載の装置。 １１、前記コイル（６）を全波整流交流電圧で附勢する
ようにしたことを特徴とする請求項１〜７のいずれかに
記載の装置。[Claims] 1. A cutter (20) is provided which is movable in the longitudinal direction by an electric drive system and vibrates in contact with a fixed shearing plate (20a), and the shearing plate (20a) is provided with bristles. A hole is formed in which the drive system enters the coil (
6) comprises a stator circuit which can be energized to move a two-pole permanent magnet (35), and transmits the motion of the permanent magnet to the cutter (20) to shave body hair, in particular a small vibrating device for household use. In a dry shaver: - between stator poles (7', 7'') acting on both ends of said permanent magnet (35) so as to be able to reciprocate in the direction of movement of the cutter (20); - when said stator coil (6) is not energized, the permanent magnet (35) is positioned by spring force in a rest position in the space of the stator magnetic field, and said stator coil (6) is energized; A small vibrating device for household use, characterized in that the permanent magnet (35) vibrates in conjunction with the rest position when the permanent magnet (35) is moved in the direction of movement of the cutter. 3. The device according to claim 1, characterized in that the permanent magnet (35) is directly attached to the underside of the cutter (20), and the permanent magnet and the fixed The device according to claim 1, characterized in that a partition plate (42) is arranged between the child pole and the child pole.4.The spring force is applied to the permanent magnet (35), or to the permanent magnet and the cutter, respectively. Acting in the opposite direction, the permanent magnet (
35) is in a rest position, and when the stator coil is energized, the permanent magnet makes a linear oscillatory movement from the rest position in the direction of movement of the cutter. 3. A device according to claim 1 or 2. 5. The stator pole (7') extends in a direction perpendicular to the moving direction of the axially magnetized permanent magnet (35);
2. Device according to claim 1, characterized in that these stator poles (7') are arranged opposite to the axial pole end faces (35b) of the permanent magnet. 6. said stator poles (7″) extend parallel to the direction of movement of said axially magnetized permanent magnet (35), and these stator poles are adjacent to said permanent magnet and said magnet 7. The device according to claim 1, characterized in that the coil (6) is arranged at a frequency that is a mains frequency (50 Hz).
, 60 Hz). 60 Hz). 8. The apparatus of claim 7, wherein the coil is energized with a current pulse. 9. Device according to claim 8, characterized in that the coil (6) is energized with unipolar current pulses. 10. The apparatus of claim 7, wherein the current pulses are provided by a brush and wiper pulse source. 11. The device according to claim 1, characterized in that the coil (6) is energized with a full-wave rectified alternating current voltage.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3822333.3 | 1988-07-01 | ||
| DE19883822333 DE3822333A1 (en) | 1988-07-01 | 1988-07-01 | SMALL HOUSEHOLD VIBRATION DEVICE FOR CUTTING BODY HAIR |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0252692A true JPH0252692A (en) | 1990-02-22 |
Family
ID=6357772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16406789A Pending JPH0252692A (en) | 1988-07-01 | 1989-06-28 | Small domestic vibrator |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0349077A3 (en) |
| JP (1) | JPH0252692A (en) |
| CN (1) | CN1039375A (en) |
| DE (1) | DE3822333A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7148636B2 (en) | 2002-05-31 | 2006-12-12 | Matsushita Electric Industrial Co., Ltd. | Motor drive control apparatus |
| JP2007175491A (en) * | 2005-12-19 | 2007-07-12 | Braun Gmbh | Electric shaver with vibrating shaving head |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4117227A1 (en) * | 1991-05-27 | 1992-12-03 | Philips Patentverwaltung | Vibration device for electric razor or hair-cutter - uses oscillation device controlled by electric stator with resetting springs limiting oscillation amplitude |
| DE4117225A1 (en) * | 1991-05-27 | 1992-12-03 | Philips Patentverwaltung | Vibration device for electric razor or hair-cutter - has oscillating rotor acted on by spring-biassed tensioning cable supporting vibration stage |
| WO1995026261A1 (en) * | 1994-03-28 | 1995-10-05 | Matsushita Electric Works, Ltd. | Reciprocatory dry shaver |
| JP3382061B2 (en) * | 1995-05-31 | 2003-03-04 | 松下電工株式会社 | Linear vibration motor |
| JP3674216B2 (en) * | 1997-02-25 | 2005-07-20 | 松下電工株式会社 | Drive control method for linear vibration motor |
| JP3661424B2 (en) | 1998-07-28 | 2005-06-15 | 松下電工株式会社 | Drive control method for linear vibration motor |
| US20160226364A1 (en) * | 2015-01-30 | 2016-08-04 | Sunbeam Products, Inc. | Electric Hair Clipper/Trimmer |
| EP3771527A1 (en) * | 2019-07-30 | 2021-02-03 | Koninklijke Philips N.V. | Hair-cutting apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1065755B (en) * | 1957-04-02 | 1959-09-17 | ||
| NL271185A (en) * | 1960-09-29 | |||
| DE2032520C3 (en) * | 1970-07-01 | 1980-03-13 | Kuno Moser, Gmbh, Fabrik Fuer Feinmechanik Und Elektrotechnik, 7731 Unterkirnach | Oscillating armature motor |
-
1988
- 1988-07-01 DE DE19883822333 patent/DE3822333A1/en not_active Withdrawn
-
1989
- 1989-06-26 EP EP19890201678 patent/EP0349077A3/en not_active Withdrawn
- 1989-06-28 JP JP16406789A patent/JPH0252692A/en active Pending
- 1989-06-28 CN CN 89106353 patent/CN1039375A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7148636B2 (en) | 2002-05-31 | 2006-12-12 | Matsushita Electric Industrial Co., Ltd. | Motor drive control apparatus |
| JP2007175491A (en) * | 2005-12-19 | 2007-07-12 | Braun Gmbh | Electric shaver with vibrating shaving head |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0349077A3 (en) | 1991-04-03 |
| CN1039375A (en) | 1990-02-07 |
| EP0349077A2 (en) | 1990-01-03 |
| DE3822333A1 (en) | 1990-01-04 |
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