JP4086112B2 - 回転自在歯ブラシ - Google Patents
回転自在歯ブラシ Download PDFInfo
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- JP4086112B2 JP4086112B2 JP2004101251A JP2004101251A JP4086112B2 JP 4086112 B2 JP4086112 B2 JP 4086112B2 JP 2004101251 A JP2004101251 A JP 2004101251A JP 2004101251 A JP2004101251 A JP 2004101251A JP 4086112 B2 JP4086112 B2 JP 4086112B2
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- Prior art keywords
- toothbrush
- point
- hook
- fulcrum
- thumb
- 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.)
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Description
ただし、出願者が考案した回転自在歯ブラシでは、歯ブラシが歯や歯肉の形状に沿って自然に変化し、自然の動きをするが、回転軸を操る円筒状の筒を必要とし，価格的に高価になってしまう。また洗浄という点では円筒内に若干の問題点を残した。
２ 歯ブラシの柄
３ 毛先
４ 円柱形から放射線状に角を設けた部位
５ 柄の先端部
６ 親指と人差し指で挟む部分
７ 歯ブラシヘッドと歯ブラシの柄のなす角度
８ 歯
９ 支点
１０ 力点
１１ 作用点
１２ 力点から支点までの距離
１３ 支点から作用点までの距離
１４ 掌と歯ブラシの柄の先端が接触する支点部分
１５ 親指と人差し指の間の水かき付近の接触部分で支点部分
１６ 力点から作用点までの距離
Claims (1)
- 梃子の原理を利用して、歯ブラシの回転軸を支点（９）から力点（１０）にいたる掌内あるいは親指と人差し指の間の接触する部位（１４）で代用できるように掌あるいは親指と人差し指の間の水かき付近で接触する部分に瓢箪状のくびれをもうけた構造によって、摩擦圧を最小にするようにし、前記支点（９）は瓢箪状の端部であり、前記力点（１０）は前記瓢箪状のくびれであり、力点のかかる部位より毛先よりの上の部分から円柱の中心部位から放射状の柄がひらくように角度を設け，この形状の効果で、作用点となる毛先までの距離を大きくなるが回転自体は円滑におこなえることによって、掌あるいは親指と人差し指の間の歯ブラシの柄の摩擦よりもはるかに大きいモーメントを生じさせるような構造により歯や歯肉の形状とおりに動くことが出来る回転自在歯ブラシ。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004101251A JP4086112B2 (ja) | 2004-03-04 | 2004-03-04 | 回転自在歯ブラシ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004101251A JP4086112B2 (ja) | 2004-03-04 | 2004-03-04 | 回転自在歯ブラシ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005245997A JP2005245997A (ja) | 2005-09-15 |
| JP4086112B2 true JP4086112B2 (ja) | 2008-05-14 |
Family
ID=35027032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004101251A Expired - Fee Related JP4086112B2 (ja) | 2004-03-04 | 2004-03-04 | 回転自在歯ブラシ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4086112B2 (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009039495A (ja) * | 2007-08-10 | 2009-02-26 | Koji Furugoori | 左右１対歯ブラシ |
-
2004
- 2004-03-04 JP JP2004101251A patent/JP4086112B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005245997A (ja) | 2005-09-15 |
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