JPH0525456Y2 - - Google Patents
Info
- Publication number
- JPH0525456Y2 JPH0525456Y2 JP1985180542U JP18054285U JPH0525456Y2 JP H0525456 Y2 JPH0525456 Y2 JP H0525456Y2 JP 1985180542 U JP1985180542 U JP 1985180542U JP 18054285 U JP18054285 U JP 18054285U JP H0525456 Y2 JPH0525456 Y2 JP H0525456Y2
- Authority
- JP
- Japan
- Prior art keywords
- drive shaft
- waterproof cap
- toothbrush
- casing
- attached
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 239000013013 elastic material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Brushes (AREA)
Description
【考案の詳細な説明】
〔技術分野〕
本考案は電動歯ブラシ、詳しくは駆動軸に取り
付けられた歯ブラシを駆動軸方向に往復駆動する
電動歯ブラシに関するものである。[Detailed Description of the Invention] [Technical Field] The present invention relates to an electric toothbrush, and more particularly, to an electric toothbrush in which a toothbrush attached to a drive shaft is driven back and forth in the direction of the drive shaft.
従来、駆動軸に取り付けられた歯ブラシを駆動
軸方向に往復駆動する電動歯ブラシが提供されて
おり、例えば特公昭52−43981号公報にて知られ
ている。この種の電動歯ブラシにおいては、第７
図に示す如く駆動軸に防水キヤツプを水密的に取
り付けて駆動機構部を収納したケーシングの防水
を行つているが、この防水キヤツプは略円錐形状
に形成され、上部中央部に駆動軸が貫挿されて嵌
着され、下部周縁がケーシング上端部周縁に取り
付けられているため、電動機にて高速で上下駆動
される駆動軸の上下動に伴つて、その駆動軸との
嵌着部が上下動して全体が周期的に変形するもの
である。ここで、第８図ａ〜ｄは防水キヤツプの
微小時間における変形状態を模式的に示すもので
あつて、図のａからｄに至る変形を周期的に繰り
返す。この図からも明らかなように、防水キヤツ
プの周側部が波打つて複雑に振動しており、この
ため防水キヤツプの周囲の空気を振動させて騒音
を発生させることになる。以上のように、歯ブラ
シを上下方向に往復駆動する電動歯ブラシにあつ
ては、防水キヤツプにて騒音が発生するという問
題点があつた。
BACKGROUND ART Conventionally, an electric toothbrush has been provided in which a toothbrush attached to a drive shaft is reciprocated in the direction of the drive shaft, and is known, for example, from Japanese Patent Publication No. 52-43981. In this type of electric toothbrush, the seventh
As shown in the figure, a waterproof cap is attached to the drive shaft in a watertight manner to make the casing housing the drive mechanism waterproof.This waterproof cap is formed into a substantially conical shape, and the drive shaft passes through the upper center of the cap. Since the lower peripheral edge is attached to the upper edge of the casing, the fitting part with the drive shaft moves up and down as the drive shaft, which is driven up and down at high speed by an electric motor, moves up and down. The entire structure deforms periodically. Here, FIGS. 8a to 8d schematically show the deformation state of the waterproof cap in a minute period, and the deformation from a to d in the figures is periodically repeated. As is clear from this figure, the circumference of the waterproof cap is wavy and vibrates in a complicated manner, which causes the air around the waterproof cap to vibrate and generate noise. As described above, electric toothbrushes that reciprocate in the vertical direction have a problem in that noise is generated in the waterproof cap.
本考案は上記の点に鑑みて成したものであつ
て、その目的とするところは、防水キヤツプが振
動することを防いで、騒音が発生することのない
電動歯ブラシを提供することにある。
The present invention has been developed in view of the above points, and its purpose is to provide an electric toothbrush that prevents the waterproof cap from vibrating and generates no noise.
以下、本考案の実施例を第１図乃至第５図に基
づいて説明する。これらの図において、防水キヤ
ツプ１はゴム等によつて一体成形されるもので、
後述するケーシング６の上端部に取り付けられる
大径の取付筒部２と、この取付筒部２の上方中央
部に形成された小径の軸保持筒部３と、これらの
取付筒部２および軸保持筒部３を連結する円錐周
面状の周側部４とから構成されていて全体として
ほぼ円錐状を呈している。
Hereinafter, an embodiment of the present invention will be described with reference to Figs. 1 to 5. In these figures, the waterproof cap 1 is integrally formed of rubber or the like,
It is composed of a large-diameter mounting cylindrical portion 2 attached to the upper end of a casing 6 (described later), a small-diameter shaft retaining cylindrical portion 3 formed in the upper center portion of this mounting cylindrical portion 2, and a conical circumferential side portion 4 connecting the mounting cylindrical portion 2 and the shaft retaining cylindrical portion 3, and has an approximately conical shape overall.
しかして、軸保持筒部３は後述の駆動軸２４に
嵌着されるもので、この軸保持筒部３は駆動軸２
４の上下動に伴つて上下に移動可能であり、この
際周側部４は第１図及び第３図ｂに示す如く変形
するものである。 Therefore, the shaft holding cylinder part 3 is fitted onto a drive shaft 24, which will be described later.
4 can be moved up and down, and at this time, the circumferential side portion 4 is deformed as shown in FIGS. 1 and 3b.
前記防水キヤツプ１内には、第４図に示すよう
な発泡ポリウレタン等の粘性を有する弾性体にて
略円錐台形状に形成された振動吸収部材５が収納
されている。ここで振動吸収部材５はその外周側
面が防水キヤツプ１の周側部４内面に常に当接す
るような大きさに形成されており、その中央部に
形成された貫通孔５ａに駆動軸２４を貫通させた
状態で防水キヤツプ１内に収納されている。前記
振動吸収部材５は弾性体で形成されているので、
第１図乃至第３図から明らかなように防水キヤツ
プ１の変形に応じて変形可能である。 Inside the waterproof cap 1, there is housed a vibration absorbing member 5 formed into a substantially truncated cone shape and made of a viscous elastic material such as polyurethane foam, as shown in FIG. Here, the vibration absorbing member 5 is formed in a size such that its outer circumferential side always comes into contact with the inner surface of the circumferential side 4 of the waterproof cap 1, and the drive shaft 24 is passed through a through hole 5a formed in the center of the vibration absorbing member 5. It is stored in the waterproof cap 1 in the closed state. Since the vibration absorbing member 5 is made of an elastic body,
As is clear from FIGS. 1 to 3, it can be deformed according to the deformation of the waterproof cap 1.
次に、この防水キヤツプ１を用いた電動歯ブラ
シ全体の構造を第１図および第２図を参照しつつ
詳述する。これらの図において、６は円筒状のケ
ーシングであり、その内部にはモータ７および蓄
電池８が収納されている。モータ７の出力軸７ａ
にはピニオン９が嵌合され、このピニオン９に
は、第５図に示すように中央に軸孔１１が穿設さ
れ、かつこの軸孔１１からの距離が始点と終点と
で異なる円弧状のカム構１２が形成されたフエー
スギア１０が噛合されている。 Next, the entire structure of an electric toothbrush using this waterproof cap 1 will be explained in detail with reference to FIGS. 1 and 2. In these figures, 6 is a cylindrical casing in which a motor 7 and a storage battery 8 are housed. Output shaft 7a of motor 7
A pinion 9 is fitted into the pinion 9, and the pinion 9 has a shaft hole 11 in the center as shown in FIG. A face gear 10 on which a cam structure 12 is formed is engaged.
前記フエースギア１０に近接して配設される偏
心カム１３は第５図に示す如くほぼ円柱状に形成
され、その一側面には偏心したボス１４が突設さ
れていると共に、半径方向に沿つた長孔１５が形
成されている。ここで、ボス１４はフエースギア
１０のカム溝１２に摺動自在に係合されるもの
で、偏心カム１３とフエースギア１０とは軸孔１
１に圧入される支持軸１６（第１図参照）を長孔
１５に貫通することによつて一体化され、支持軸
１６の両端はシヤーシ１７およびシヤーシ１８の
内面に軸支されている。なお、シヤーシ１７およ
びシヤーシ１８はアンダーカツト等の方法によつ
て連結固定される。 The eccentric cam 13 disposed close to the face gear 10 is formed into a substantially cylindrical shape as shown in FIG. A long hole 15 is formed. Here, the boss 14 is slidably engaged with the cam groove 12 of the face gear 10, and the eccentric cam 13 and the face gear 10 are connected to the shaft hole 1.
A support shaft 16 (see FIG. 1) press-fitted into the chassis 1 is integrated by passing through the elongated hole 15, and both ends of the support shaft 16 are pivotally supported by the inner surfaces of the chassis 17 and chassis 18. Note that the chassis 17 and the chassis 18 are connected and fixed by a method such as an undercut.
また、第２図に示すように、偏心カム１３はケ
ーシング６の内部に収納された駆動子１９の真円
状の係合部２０に摺動自在に係合され、この駆動
子１９と、前述の偏心カム１３、フエースギア１
０およびピニオン９等によつて駆動機構部２１が
構成されている。 Further, as shown in FIG. 2, the eccentric cam 13 is slidably engaged with a perfect circular engagement portion 20 of a drive element 19 housed inside the casing 6, and the Eccentric cam 13, face gear 1
A drive mechanism section 21 is constituted by the 0, pinion 9, and the like.
前記駆動子１９は第１図に示す如くボール２２
を介してシヤーシ１７，１８間に保持され、モー
タ７および蓄電池８はシヤーシ１７によつて位置
決めされつつ固定される。 The driver 19 has a ball 22 as shown in FIG.
The motor 7 and the storage battery 8 are held between the chassis 17 and 18 via the chassis 17, and the motor 7 and the storage battery 8 are positioned and fixed by the chassis 17.
次に、前述した防水キヤツプ１はその下端周縁
を構成する取付筒部２をケーシング６の上端部に
嵌着したうえ、環状リング２３を装着することに
よつて取り付けられる。一方、駆動子１９の上端
部には駆動軸２４が嵌着され、この駆動軸２４は
防水キヤツプ１内の振動吸収部材５の貫通孔５ａ
を貫通し、更に防水キヤツプ１の軸保持筒部３の
通孔を水密的に貫通してその上端部には歯ブラシ
２５が連結されている。この歯ブラシ２５は、プ
ラスチツク等の合成樹脂材にて形成された長尺の
柄部２６の先端にナイロン等からなるブラシ２７
を多数本植毛して形成したもので、柄部２６の下
端部に形成された凹部２９に駆動軸２４の先端部
を嵌合することによつて着脱自在に取り付けられ
る。なお、第１図において２８はスイツチを示し
ている。 Next, the above-mentioned waterproof cap 1 is attached by fitting the mounting cylinder part 2 constituting the lower edge of the cap onto the upper end of the casing 6 and then attaching the annular ring 23 thereto. On the other hand, a drive shaft 24 is fitted into the upper end of the driver 19, and this drive shaft 24 is inserted into the through hole 5a of the vibration absorbing member 5 in the waterproof cap 1.
A toothbrush 25 is connected to the upper end of the shaft-holding cylinder 3 of the waterproof cap 1 through a through-hole in the shaft-holding cylinder 3 of the waterproof cap 1 in a watertight manner. This toothbrush 25 has a long handle 26 made of synthetic resin material such as plastic, and a brush 27 made of nylon or the like at the tip.
The drive shaft 24 is detachably attached by fitting the tip of the drive shaft 24 into a recess 29 formed at the lower end of the handle 26. In addition, in FIG. 1, 28 indicates a switch.
次いでこの動作を説明すると、モータ７の回転
はピニオン９を介してフエースギヤ１０に伝達さ
れた後、偏心カム１３および駆動子１９によつて
往復運動に変換され、これによつて駆動軸２４ひ
いては歯ブラシ２５が往復動する。ここで、モー
タ７を正逆転可能に構成することにより、フエー
スギヤ１０に形成されたカム溝１２と、このカム
溝１２に係合するボス１４と、偏心カム１３の長
孔１５と、支持軸１６等によつて歯ブラシ２５の
往復運動量を可変とすることができる。 Next, to explain this operation, the rotation of the motor 7 is transmitted to the face gear 10 via the pinion 9, and then converted into reciprocating motion by the eccentric cam 13 and the driver 19, thereby causing the drive shaft 24 and the toothbrush to rotate. 25 reciprocates. Here, by configuring the motor 7 to be capable of forward and reverse rotation, the cam groove 12 formed in the face gear 10, the boss 14 that engages with this cam groove 12, the long hole 15 of the eccentric cam 13, and the support shaft 16 etc., the amount of reciprocating motion of the toothbrush 25 can be made variable.
上述のように、駆動軸２４の往復動に伴つて防
水キヤツプ１は変形し、弾性体でできた振動吸収
部材５は第１図乃至第３図から明らかなように、
防水キヤツプ１の変形に伴つて変形する。この
時、振動吸収部材５が粘性を有することによつ
て、防水キヤツプ１が駆動軸２４の往復動に伴つ
て変形してその周側部４に発生する振動を、振動
吸収部材５にて吸収することができるため、防水
キヤツプ１の周囲の空気が振動して騒音が発生す
るということがない。更に、粘性を有する弾性体
からなる振動吸収部材５が防水キヤツプ１内に収
納されていることによつて、電動歯ブラシを落下
させた場合等に、防水キヤツプ１の周側部４が異
物に当つても、周側部４がケーシング６内の部品
に直接に接することがなく、周側部４に破れが生
じるということがない。 As mentioned above, the waterproof cap 1 deforms as the drive shaft 24 reciprocates, and the vibration absorbing member 5 made of an elastic material deforms as shown in FIGS. 1 to 3.
It deforms as the waterproof cap 1 deforms. At this time, since the vibration absorbing member 5 has viscosity, the vibration absorbing member 5 absorbs the vibration generated on the circumferential side 4 when the waterproof cap 1 deforms as the drive shaft 24 reciprocates. Therefore, the air around the waterproof cap 1 does not vibrate and generate noise. Furthermore, since the vibration absorbing member 5 made of a viscous elastic material is housed in the waterproof cap 1, the peripheral side 4 of the waterproof cap 1 will not come into contact with foreign objects when the electric toothbrush is dropped. Even if the circumferential side part 4 is in direct contact with the parts inside the casing 6, the circumferential side part 4 will not be torn.
次に、第６図は本考案の他の実施例を示すもの
で、この実施例においては振動吸収部材３５を、
発泡ポリウレタン等の粘性を有する弾性体にて円
筒状に形成しており、この場合も前述の実施例と
同様の効果を奏する。その他の構成は前述の実施
例と同様である。 Next, FIG. 6 shows another embodiment of the present invention, in which the vibration absorbing member 35 is
It is formed into a cylindrical shape from a viscous elastic material such as foamed polyurethane, and in this case as well, the same effect as in the above embodiment is achieved. The other configurations are similar to those of the previous embodiment.
（考案の効果）
以上の如く、本考案はケーシングの端部に突設
した駆動軸と、前記駆動軸に取り付けた歯ブラシ
と、中空の略円錐形状で中心に前記駆動軸が貫挿
されるとともに、下端周縁を前記ケーシングの端
部に取り付けた防水キヤツプとを備え、前記歯ブ
ラシを駆動軸の軸方向に往復駆動する電動歯ブラ
シにおいて、粘性を有する弾性体で形成されてお
り、前記防水キヤツプ内に収納されるとともに、
防水キヤツプの内周面に当接する振動吸収部材を
備えているので、駆動軸の往復動に伴つて防水キ
ヤツプが変形することによつて防水キヤツプの周
側部に発生する振動を振動吸収部材にて吸収する
ことができ、防水キヤツプの振動によつて騒音が
発生するということを防止できるという効果を奏
する。(Effects of the Invention) As described above, the present invention includes a drive shaft protruding from the end of a casing, a toothbrush attached to the drive shaft, a hollow substantially conical shape into which the drive shaft is inserted through the center; An electric toothbrush comprising a waterproof cap whose lower end peripheral edge is attached to the end of the casing, and for reciprocating the toothbrush in the axial direction of a drive shaft, the electric toothbrush being made of a viscous elastic body and housed in the waterproof cap. Along with being
Since it is equipped with a vibration absorbing member that comes into contact with the inner peripheral surface of the waterproof cap, the vibration that is generated on the peripheral side of the waterproof cap due to the deformation of the waterproof cap as the drive shaft reciprocates is absorbed by the vibration absorbing member. This has the effect of preventing noise from being generated by the vibration of the waterproof cap.
第１図は本考案の全体構造を示す縦断面図、第
２図は第１図のＡ−Ａ断面図、第３図ａ及びｂは
第２図及び第１図の要部拡大図、第４図は防水キ
ヤツプの斜視図、第５図は同上の要部の分解斜視
図、第６図は本考案の他の実施例の防水キヤツプ
の斜視図、第７図は従来例の要部断面図、第８図
ａ〜ｄは同上の防水キヤツプの変形状態を模式的
に示した図である。
１……防水キヤツプ、５……振動吸収部材、６
……ケーシング、２４……駆動軸、２５……歯ブ
ラシ。
Fig. 1 is a vertical cross-sectional view showing the overall structure of the present invention, Fig. 2 is a cross-sectional view taken along line A-A in Fig. 1, Figs. 3a and 3b are enlarged views of the main parts of Figs. 2 and 1, Fig. 4 is a perspective view of a waterproof cap, Fig. 5 is an exploded perspective view of the main parts of the same, Fig. 6 is a perspective view of a waterproof cap according to another embodiment of the present invention, Fig. 7 is a cross-sectional view of the main parts of a conventional example, and Figs. 8a to 8d are schematic views showing the deformation state of the waterproof cap according to the same. 1...Waterproof cap, 5...Vibration absorbing member, 6
...Casing, 24...Drive shaft, 25...Toothbrush.
Claims (1)
動軸に取り付けた歯ブラシと、中空の略円錐形状
で中心に前記駆動軸が貫挿されるとともに、下端
周縁を前記ケーシングの端部に取り付けた防水キ
ヤツプとを備え、前記歯ブラシを駆動軸の軸方向
に往復駆動する電動歯ブラシにおいて、 粘性を有する弾性体で形成されており、前記防
水キヤツプ内に収納されるとともに、防水キヤツ
プの内周面に当接する振動吸収部材を備えたこと
を特徴とする電動歯ブラシ。[Claims for Utility Model Registration] A drive shaft protruding from the end of the casing, a toothbrush attached to the drive shaft, a hollow substantially conical shape into which the drive shaft is inserted through the center, and a lower peripheral edge of the toothbrush attached to the drive shaft. An electric toothbrush comprising a waterproof cap attached to an end of a casing and for reciprocating the toothbrush in the axial direction of a drive shaft, the electric toothbrush being made of a viscous elastic body and housed in the waterproof cap, An electric toothbrush characterized by comprising a vibration absorbing member that comes into contact with the inner peripheral surface of a waterproof cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985180542U JPH0525456Y2 (en) | 1985-11-22 | 1985-11-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985180542U JPH0525456Y2 (en) | 1985-11-22 | 1985-11-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6287532U JPS6287532U (en) | 1987-06-04 |
| JPH0525456Y2 true JPH0525456Y2 (en) | 1993-06-28 |
Family
ID=31124595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985180542U Expired - Lifetime JPH0525456Y2 (en) | 1985-11-22 | 1985-11-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0525456Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10245086A1 (en) * | 2002-09-27 | 2004-04-08 | Trisa Holding Ag | Method of making a toothbrush |
| JP4642376B2 (en) * | 2004-04-28 | 2011-03-02 | 株式会社泉精器製作所 | Electric toothbrush appliance |
| CH711557A1 (en) * | 2015-09-22 | 2017-03-31 | Curaden Ag | Brush head for a sonic toothbrush. |
| KR102265324B1 (en) * | 2019-10-22 | 2021-06-15 | 주식회사 아이클로 | Method for Operating Beauty Equipment of All-in-One type |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5921807A (en) * | 1982-07-26 | 1984-02-03 | 富士通株式会社 | Snow removal of power generator by solar rays |
| JPS5937081A (en) * | 1982-08-25 | 1984-02-29 | ダイキン工業株式会社 | Method of controlling industrial robot |
-
1985
- 1985-11-22 JP JP1985180542U patent/JPH0525456Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5921807A (en) * | 1982-07-26 | 1984-02-03 | 富士通株式会社 | Snow removal of power generator by solar rays |
| JPS5937081A (en) * | 1982-08-25 | 1984-02-29 | ダイキン工業株式会社 | Method of controlling industrial robot |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6287532U (en) | 1987-06-04 |
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